GHSA-ch52-4w7c-c8xp

Suggest an improvement
Source
https://github.com/advisories/GHSA-ch52-4w7c-c8xp
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-ch52-4w7c-c8xp/GHSA-ch52-4w7c-c8xp.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-ch52-4w7c-c8xp
Aliases
  • CVE-2026-93748
Downstream
CGA (2)
Published
2026-09-18T18:31:44Z
Modified
2026-10-02T22:45:04Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
http-cache-semantics max-stale handling can disclose cross-user cached responses
Details

http-cache-semantics through 4.2.0 fails to properly validate security-zeroed cache entries when processing client max-stale directives, allowing unauthenticated attackers to retrieve cached responses belonging to other users. Attackers can request the same URL with a large max-stale value to obtain another user's Set-Cookie session credentials from shared-cache entries that were deliberately zeroed for security reasons.

Database specific 
{
    "cwe_ids":  [
        "CWE-524"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-10-02T22:36:42Z",
    "nvd_published_at":  "2026-09-18T18:18:33Z",
    "severity":  "HIGH"
}
References

Affected packages

npm / http-cache-semantics

Package

Name
http-cache-semantics
View open source insights on deps.dev
Purl
pkg:npm/http-cache-semantics

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
4.2.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-ch52-4w7c-c8xp/GHSA-ch52-4w7c-c8xp.json"