GHSA-fg72-q65g-wm5w
Suggest an improvement- Source
- https://github.com/advisories/GHSA-fg72-q65g-wm5w
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-fg72-q65g-wm5w/GHSA-fg72-q65g-wm5w.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-fg72-q65g-wm5w
- Withdrawn
- 2026-09-30T23:46:36Z
- Published
- 2026-09-06T12:30:23Z
- Modified
- 2026-10-01T00:00:04Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- Duplicate Advisory: H3: Unbounded Chunked Cookie Count in Session Cleanup Loop may Lead to Denial of Service
- Details
-
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-q5pr-72pq-83v3. This link is maintained to preserve external references.
Original Description
h3 versions before 2.0.1-rc.18 fail to validate the chunk count parsed from user-controlled cookie values in setChunkedCookie() and deleteChunkedCookie() functions. Attackers can send a crafted cookie header with an extremely large chunk count to trigger an O(n²) cleanup loop that hangs the server process.
- Database specific
{ "cwe_ids": [ "CWE-400" ], "github_reviewed": true, "github_reviewed_at": "2026-09-30T23:46:36Z", "nvd_published_at": "2026-09-06T12:17:15Z", "severity": "HIGH" }- References
Affected packages
npm / h3
Package
- Name
- h3
- View open source insights on deps.dev
- Purl
- pkg:npm/h3