Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U N L N 5.3 .0012 1.5 —
AFFECTED Product Versions Fixed undici 7.0.0 – 7.29.1
TIMELINE Sep 2 Reserved by openjs Sep 4 Published (CNA: openjs) Sep 15 RESCORED — CVE-2026-85008 (undici). CVSS 3.7 → 5.3 (NVD).
undici's cache interceptor documents that only safe HTTP methods are cached, but its logic to skip caching is built by subtracting the configured methods from the set of safe methods, so an unsafe method such as POST, PUT, or DELETE is never placed in the skip list and instead falls through to the full cache-read path. The response-storage gate also lacked a method check, so a response to an unsafe request that is heuristically cacheable or carries an explicit Cache-Control directive is stored and later replayed from cache. Because response headers from a remote origin are untrusted, an origin can answer once with a cacheable status and then have the client's own subsequent state-changing requests to that path served from the stale cache entry without ever reaching the origin, an integrity failure that occurs under the interceptor's default configuration. This affects undici versions from 7.0.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.
| Date | Event | Detail |
|---|---|---|
| September 2, 2026 | Reserved | Reserved by openjs |
| September 4, 2026 | Published | Published (CNA: openjs) |
| September 15, 2026 | RESCORED | RESCORED — CVE-2026-85008 (undici). CVSS 3.7 → 5.3 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| undici | undici | — | 7.0.0 | 7.29.1 |
Authoritative record: CVE-2026-85008 at cve.org
Vendors: undici
Weaknesses: CWE-345
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-85008 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
