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CVE-2026-82476 (GCVE-0-2026-82476)

Vulnerability from cvelistv5

Published

2026-08-29 16:35

Modified

2026-08-29 16:35

Severity ?

6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Summary

Memos through 0.30.0 omits the 100.64.0.0/10 carrier-grade NAT address range from SSRF protection in its link-metadata fetcher, allowing unauthenticated attackers to bypass IP validation. Attackers can make the server request internal hosts in that range including cloud metadata services and read page titles and descriptions back.

References

URL

Tags

	https://github.com/usememos/memos/issues/6099	issue-tracking
	https://github.com/usememos/memos/blob/v0.30.0/internal/httpgetter/html_meta.go	technical-description
	https://github.com/usememos/memos	product
	https://www.vulncheck.com/advisories/memos-through-0.30.0-ssrf-via-omitted-cgnat-address-range	third-party-advisory

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: 0 <

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/github.com/usememos/memos",
          "product": "memos",
          "vendor": "usememos",
          "versions": [
            {
              "lessThanOrEqual": "0.30.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:usememos:memos:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "0.30.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-07-19T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Memos through 0.30.0 omits the 100.64.0.0/10 carrier-grade NAT address range from SSRF protection in its link-metadata fetcher, allowing unauthenticated attackers to bypass IP validation. Attackers can make the server request internal hosts in that range including cloud metadata services and read page titles and descriptions back."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #6099",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/usememos/memos/issues/6099"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/usememos/memos/blob/v0.30.0/internal/httpgetter/html_meta.go"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/usememos/memos"
        },
        {
          "name": "VulnCheck Advisory: Memos through 0.30.0 SSRF via Omitted CGNAT Address Range",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/memos-through-0.30.0-ssrf-via-omitted-cgnat-address-range"
        }
      ],
      "title": "Memos through 0.30.0 SSRF via Omitted CGNAT Address Range",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-82476",
    "datePublished": "2026-08-29T16:35:36.039Z",
    "dateReserved": "2026-08-29T14:11:15.036Z",
    "dateUpdated": "2026-08-29T16:35:36.039Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-71272 (GCVE-0-2026-71272)

Vulnerability from cvelistv5

Published

2026-08-05 12:26

Modified

2026-08-10 11:46

Severity ?

8.5 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

CWE

CWE-367

Summary

Memos' webhook dispatch function safeDialContext (internal/webhook/webhook.go) resolves the target hostname via net.DefaultResolver.LookupHost and validates the resulting IPs against reserved ranges, but then dials net.JoinHostPort(host, port) using the original hostname rather than the already-validated IP address.

References

URL

Tags

	https://github.com/usememos/memos	third-party-advisory
	https://github.com/usememos/memos/blob/main/internal/webhook/webhook.go	third-party-advisory

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: 0 ≤ 0.29.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-71272",
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        }
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            }
          ],
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        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
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            "version": "3.1"
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      ],
      "problemTypes": [
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      ],
      "providerMetadata": {
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          "url": "https://github.com/usememos/memos/blob/main/internal/webhook/webhook.go"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Memos Webhook DNS Rebinding TOCTOU SSRF in safeDialContext()"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
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    "dateReserved": "2026-08-05T12:23:34.967Z",
    "dateUpdated": "2026-08-10T11:46:48.194Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-71271 (GCVE-0-2026-71271)

Vulnerability from cvelistv5

Published

2026-08-05 12:26

Modified

2026-08-10 11:46

Severity ?

8.5 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

CWE

CWE-918

Summary

Memos' webhook URL validation, isReservedIP (internal/webhook/validate.go), checks a candidate IP against a reservedCIDRs list that omits 0.0.0.0/8 and never calls ip.IsUnspecified — unlike the correctly implemented sibling function isInternalIP in internal/httpgetter/html_meta.go, which does.

References

URL

Tags

	https://github.com/usememos/memos	third-party-advisory
	https://github.com/usememos/memos/blob/main/internal/webhook/validate.go	third-party-advisory

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: 0 ≤ 0.29.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-71271",
                "options": [
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                    "Exploitation": "none"
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                  },
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                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-05T15:38:03.435461Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "programFiles": [
            "internal/webhook/validate.go"
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          "type": "finder",
          "value": "Alibek Baxtiyorov"
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            }
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        }
      ],
      "metrics": [
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            "confidentialityImpact": "HIGH",
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}

CVE-2026-6634 (GCVE-0-2026-6634)

Vulnerability from cvelistv5

Published

2026-04-20 11:30

Modified

2026-04-20 15:02

Severity ?

2.1 (Low) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RC:R
6.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RC:R

CWE

CWE-285 - Improper Authorization
CWE-266 - Incorrect Privilege Assignment

Summary

A weakness has been identified in usememos memos up to 0.22.1. This affects the function memos_access_token of the file src/App.tsx of the component UpdateInstanceSetting. This manipulation of the argument additionalStyle/additionalScript causes improper authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

References

URL

Tags

	https://vuldb.com/vuln/358268	vdb-entry, technical-description
	https://vuldb.com/vuln/358268/cti	signature, permissions-required
	https://vuldb.com/submit/793432	third-party-advisory
	https://github.com/Dave-gilmore-aus/security-advisories/blob/main/usememos-security-advisory	exploit

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: 0.22.0 Version: 0.22.1 cpe:2.3:a:usememos:memos::::::::

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6634",
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-20T15:02:22.354110Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
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    ],
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            "cpe:2.3:a:usememos:memos:*:*:*:*:*:*:*:*"
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            "UpdateInstanceSetting"
          ],
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          }
        },
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        {
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          ],
          "url": "https://vuldb.com/vuln/358268"
        },
        {
          "name": "VDB-358268 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/358268/cti"
        },
        {
          "name": "Submit #793432 | Usememos Memos 0.22.1 Cross Site Scripting",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/793432"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/Dave-gilmore-aus/security-advisories/blob/main/usememos-security-advisory"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "timeline": [
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          "time": "2026-04-19T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-04-19T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-04-19T21:22:25.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization"
    }
  },
  "cveMetadata": {
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    "cveId": "CVE-2026-6634",
    "datePublished": "2026-04-20T11:30:13.847Z",
    "dateReserved": "2026-04-19T19:17:20.429Z",
    "dateUpdated": "2026-04-20T15:02:48.499Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2024-21635 (GCVE-0-2024-21635)

Vulnerability from cvelistv5

Published

2025-11-14 14:11

Modified

2025-11-14 16:50

Severity ?

7.1 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CWE

CWE-287 - Improper Authentication

Summary

Memos is a privacy-first, lightweight note-taking service that uses Access Tokens to authenticate application access. When a user changes their password, the existing list of Access Tokens stay valid instead of expiring. If a user finds that their account has been compromised, they can update their password. In versions up to and including 0.18.1, though, the bad actor will still have access to their account because the bad actor's Access Token stays on the list as a valid token. The user will have to manually delete the bad actor's Access Token to secure their account. The list of Access Tokens has a generic Description which makes it hard to pinpoint a bad actor in a list of Access Tokens. A known patched version of Memos isn't available. To improve Memos security, all Access Tokens will need to be revoked when a user changes their password. This removes the session for all the user's devices and prompts the user to log in again. One can treat the old Access Tokens as "invalid" because those Access Tokens were created with the older password.

References

URL

Tags

https://github.com/usememos/memos/security/advisories/GHSA-mr34-8733-grr2

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: <= 0.18.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-21635",
                "options": [
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        ],
        "title": "CISA ADP Vulnrichment"
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          "vendor": "usememos",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
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            "attackRequirements": "NONE",
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            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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}

CVE-2024-41659 (GCVE-0-2024-41659)

Vulnerability from cvelistv5

Published

2024-08-20 19:54

Modified

2025-01-09 19:15

Severity ?

8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CWE

CWE-942 - Permissive Cross-domain Policy with Untrusted Domains

Summary

memos is a privacy-first, lightweight note-taking service. A CORS misconfiguration exists in memos 0.20.1 and earlier where an arbitrary origin is reflected with Access-Control-Allow-Credentials set to true. This may allow an attacking website to make a cross-origin request, allowing the attacker to read private information or make privileged changes to the system as the vulnerable user account. This vulnerability is fixed in 0.21.0.

References

URL

Tags

	https://securitylab.github.com/advisories/GHSL-2024-034_memos/	x_refsource_CONFIRM
	https://github.com/usememos/memos/commit/8101a5e0b162044c16385bee4f12a4a653d050b9	x_refsource_MISC
	https://github.com/usememos/memos/blob/v0.20.1/server/server.go#L163	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: < 0.21.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:usememos:memos:-:*:*:*:*:*:*:*"
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        },
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}

CVE-2024-29029 (GCVE-0-2024-29029)

Vulnerability from cvelistv5

Published

2024-04-19 15:14

Modified

2024-08-02 01:03

Severity ?

6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-918 - Server-Side Request Forgery (SSRF)
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Summary

memos is a privacy-first, lightweight note-taking service. In memos 0.13.2, an SSRF vulnerability exists at the /o/get/image that allows unauthenticated users to enumerate the internal network and retrieve images. The response from the image request is then copied into the response of the current server request, causing a reflected XSS vulnerability. Version 0.22.0 of memos removes the vulnerable file.

References

URL

Tags

	https://securitylab.github.com/advisories/GHSL-2023-154_GHSL-2023-156_memos/	x_refsource_CONFIRM
	https://github.com/usememos/memos/commit/bbd206e8930281eb040cc8c549641455892b9eb5	x_refsource_MISC
	https://github.com/usememos/memos/blob/06dbd8731161245444f4b50f4f9ed267f7c3cf63/api/v1/http_getter.go#L29	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: < 0.22.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:memos:memos:0.13.2:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "memos",
            "vendor": "memos",
            "versions": [
              {
                "status": "affected",
                "version": "0.13.2"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-29029",
                "options": [
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                  },
                  {
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-19T18:15:39.463794Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:58:18.206Z",
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          "shortName": "CISA-ADP"
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        "references": [
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              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://securitylab.github.com/advisories/GHSL-2023-154_GHSL-2023-156_memos/"
          },
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          },
          {
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            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
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CVE-2024-29028 (GCVE-0-2024-29028)

Vulnerability from cvelistv5

Published

2024-04-19 15:14

Modified

2024-08-07 17:47

Severity ?

5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Summary

memos is a privacy-first, lightweight note-taking service. In memos 0.13.2, an SSRF vulnerability exists at the /o/get/httpmeta that allows unauthenticated users to enumerate the internal network and receive limited html values in json form. This vulnerability is fixed in 0.16.1.

References

URL

Tags

	https://github.com/usememos/memos/commit/6ffc09d86a1302c384ef085aa70c7bddb3ce7ba9	x_refsource_CONFIRM
	https://securitylab.github.com/advisories/GHSL-2023-154_GHSL-2023-156_memos	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: < 0.16.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T01:03:51.620Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
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            ],
            "url": "https://github.com/usememos/memos/commit/6ffc09d86a1302c384ef085aa70c7bddb3ce7ba9"
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CVE-2024-29030 (GCVE-0-2024-29030)

Vulnerability from cvelistv5

Published

2024-04-19 15:13

Modified

2024-08-02 01:03

Severity ?

5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Summary

memos is a privacy-first, lightweight note-taking service. In memos 0.13.2, an SSRF vulnerability exists at the /api/resource that allows authenticated users to enumerate the internal network. Version 0.22.0 of memos removes the vulnerable file.

References

URL

Tags

	https://securitylab.github.com/advisories/GHSL-2023-154_GHSL-2023-156_memos/	x_refsource_CONFIRM
	https://github.com/usememos/memos/commit/bbd206e8930281eb040cc8c549641455892b9eb5	x_refsource_MISC
	https://github.com/usememos/memos/blob/06dbd8731161245444f4b50f4f9ed267f7c3cf63/api/v1/resource.go#L83	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	usememos	memos	Version: < 0.22.0

Show details on NVD website

JSON

To clipboard

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