CVE-2026-7724 (GCVE-0-2026-7724)
Vulnerability from cvelistv5
Published
2026-05-04 02:45
Modified
2026-05-04 02:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.6.28.dev2 addresses this issue. The identifier of the patch is 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Upgrading the affected component is advised.
References
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Impacted products
{
"containers": {
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:prefect:prefect:*:*:*:*:*:*:*:*"
],
"modules": [
"Webhook/Notification"
],
"product": "prefect",
"vendor": "PrefectHQ",
"versions": [
{
"status": "affected",
"version": "3.6.28.dev1"
},
{
"status": "unaffected",
"version": "3.6.28.dev2"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "nedlir (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.6.28.dev2 addresses this issue. The identifier of the patch is 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Upgrading the affected component is advised."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 2.3,
"baseSeverity": "LOW",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 4.6,
"vectorString": "AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-367",
"description": "Time-of-check Time-of-use",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-362",
"description": "Race Condition",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-04T02:45:12.517Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-360900 | PrefectHQ prefect Webhook/Notification validate_restricted_url toctou",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/360900"
},
{
"name": "VDB-360900 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/360900/cti"
},
{
"name": "Submit #807303 | PerfectHQ Perfect \u003e=3.6.26 Time-of-check Time-of-use",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/807303"
},
{
"tags": [
"issue-tracking"
],
"url": "https://linear.app/prefect/issue/OSS-7874/fix-dns-rebinding-toctou-bypass-in-validate-restricted-url"
},
{
"tags": [
"issue-tracking",
"patch"
],
"url": "https://github.com/PrefectHQ/prefect/pull/21591"
},
{
"tags": [
"exploit"
],
"url": "https://gist.github.com/nedlir/fa99777e8989414585d08c3625bf044a"
},
{
"tags": [
"patch"
],
"url": "https://github.com/PrefectHQ/prefect/commit/7c70ac54a5e101431d83b9f2681ec88d5e0021ed"
},
{
"tags": [
"patch"
],
"url": "https://github.com/PrefectHQ/prefect/releases/tag/3.6.28.dev2"
},
{
"tags": [
"product"
],
"url": "https://github.com/PrefectHQ/prefect/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-05-03T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-05-03T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-05-03T11:23:35.000Z",
"value": "VulDB entry last update"
}
],
"title": "PrefectHQ prefect Webhook/Notification validate_restricted_url toctou"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-7724",
"datePublished": "2026-05-04T02:45:12.517Z",
"dateReserved": "2026-05-03T09:18:19.872Z",
"dateUpdated": "2026-05-04T02:45:12.517Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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