CVE-2026-95112 (GCVE-0-2026-95112)
Vulnerability from cvelistv5
Published
2026-10-06 19:25
Modified
2026-10-08 12:26
Summary
When processing issue and comment bodies, Gitea scanned the entire preceding text for action keywords such as "closes" or "fixes" once per Markdown link, giving processing time quadratic in the input size. An authenticated user able to submit issue or comment content could send a crafted body of about 1 MB that keeps a CPU core busy for several minutes while holding a database transaction open.
Impacted products
Vendor Product Version
Gitea Gitea Version: 0   ≤ 1.27.3
Create a notification for this product.
Show details on NVD website


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    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-95112",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T12:25:19.083201Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-407",
                "description": "CWE-407 Inefficient Algorithmic Complexity",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-08T12:26:17.597Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "gitea.dev",
          "product": "Gitea",
          "vendor": "Gitea",
          "versions": [
            {
              "lessThanOrEqual": "1.27.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/AdamKorcz"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/n0liu"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/silverwind"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "https://github.com/wxiaoguang"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When processing issue and comment bodies, Gitea scanned the entire preceding text for action keywords such as \"closes\" or \"fixes\" once per Markdown link, giving processing time quadratic in the input size. An authenticated user able to submit issue or comment content could send a crafted body of about 1 MB that keeps a CPU core busy for several minutes while holding a database transaction open."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T19:25:12.973Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Security Advisory GHSA-467c-4w7p-8427",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-467c-4w7p-8427"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #39396",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/39396"
        },
        {
          "name": "Gitea 28.0.0 release announcement",
          "tags": [
            "release-notes"
          ],
          "url": "https://blog.gitea.com/release-of-28.0.0/"
        },
        {
          "name": "go-gitea/gitea v28.0.0 release",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/go-gitea/gitea/releases/tag/v28.0.0"
        }
      ],
      "title": "Gitea issue reference parsing CPU exhaustion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
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    "datePublished": "2026-10-06T19:25:12.973Z",
    "dateReserved": "2026-10-04T21:59:53.573Z",
    "dateUpdated": "2026-10-08T12:26:17.597Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-95112\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-08T12:25:19.083201Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-407\", \"description\": \"CWE-407 Inefficient Algorithmic Complexity\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-08T12:24:52.855Z\"}}], \"cna\": {\"title\": \"Gitea issue reference parsing CPU exhaustion\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"https://github.com/AdamKorcz\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"https://github.com/n0liu\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"https://github.com/silverwind\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"https://github.com/wxiaoguang\"}], \"affected\": [{\"vendor\": \"Gitea\", \"product\": \"Gitea\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.27.3\"}], \"packageName\": \"gitea.dev\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/go-gitea/gitea/security/advisories/GHSA-467c-4w7p-8427\", \"name\": \"GitHub Security Advisory GHSA-467c-4w7p-8427\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://github.com/go-gitea/gitea/pull/39396\", \"name\": \"Fix: go-gitea/gitea pull request #39396\", \"tags\": [\"patch\"]}, {\"url\": \"https://blog.gitea.com/release-of-28.0.0/\", \"name\": \"Gitea 28.0.0 release announcement\", \"tags\": [\"release-notes\"]}, {\"url\": \"https://github.com/go-gitea/gitea/releases/tag/v28.0.0\", \"name\": \"go-gitea/gitea v28.0.0 release\", \"tags\": [\"release-notes\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"When processing issue and comment bodies, Gitea scanned the entire preceding text for action keywords such as \\\"closes\\\" or \\\"fixes\\\" once per Markdown link, giving processing time quadratic in the input size. An authenticated user able to submit issue or comment content could send a crafted body of about 1 MB that keeps a CPU core busy for several minutes while holding a database transaction open.\"}], \"providerMetadata\": {\"orgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"shortName\": \"Gitea\", \"dateUpdated\": \"2026-10-06T19:25:12.973Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-95112\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-08T12:26:17.597Z\", \"dateReserved\": \"2026-10-04T21:59:53.573Z\", \"assignerOrgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"datePublished\": \"2026-10-06T19:25:12.973Z\", \"assignerShortName\": \"Gitea\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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