{"id":"CVE-2026-85008","title":"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 n…","summary":"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 n…","severity":"low","cvss":3.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-345","CWE-444"],"vendor":"nodejs","product":"undici","affected":["undici >= 7.0.0, < 7.29.1","undici >= 8.0.0, < 8.10.2"],"patched":["undici 8.10.2"],"published":"2026-09-04","updated":"2026-09-15","sourceUpdated":"2026-09-15T14:20:11.717","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85008","references":[{"url":"https://cna.openjsf.org/security-advisories.html","label":"ce714d77-add3-4f53-aff5-83d477b104bb"},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-8436-99hf-9mmv","label":"ce714d77-add3-4f53-aff5-83d477b104bb"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85008.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-85008"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528747"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-85008"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85008"},{"url":"https://access.redhat.com/errata/RHSA-2026:54438"},{"url":"https://access.redhat.com/errata/RHSA-2026:54389"},{"url":"https://access.redhat.com/errata/RHSA-2026:66008"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.00155,"epssPercentile":0.03847,"ingestedAt":"2026-09-08T19:08:49.593Z","slug":"CVE-2026-85008","body":"## Overview\n\nundici'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.\n\n## Affected\n\n- `undici >= 7.0.0, < 7.29.1`\n- `undici >= 8.0.0, < 8.10.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `undici 8.10.2`\n\n## Vendor advisories\n\n- **RHSA-2026:54438** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:54438)\n- **RHSA-2026:54389** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:54389)\n- **Red Hat VEX** · Low · affected: Exploit Intelligence, OpenShift Pipelines, Red Hat AMQ Broker 7, Red Hat Ansible Automation Platform 2, Red Hat Build of Podman Desktop, Red Hat Developer Hub, … · no fix planned: Exploit Intelligence, Red Hat Trusted Artifact Signer, Secrets Management Console for Red Hat OpenShift, OpenShift Pipelines, … · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85008.json)\n- **RHSA-2026:66008** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:66008)","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":20.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}