CVE-2026-126081
Rails actionpack before 8.0.5.2: Action Pack advisories - ActionController::Parameters#each_key exposes unpermitted keys (mass assignment, CVSS 7.5), signed/encrypted cookie read confusion, Live streaming buffer close, Accept/format negotiation cache poisoning, CacheStore session write-back and non-cookie session-store CSRF handling
- Severity
- high
- Affected product
- actionpack
- Affected versions
- actionpack < 8.0.5.2
- Affected versions
- actionpack ≥ 8.1.0, < 8.1.4.1
- Fixed in
- actionpack 8.0.5.2 (8.0 line) / 8.1.4.1
- Fixed in
- actionpack 8.1.4.1
- Detection basis
- Component version range
- Shipped rule
- actionpack: Rails actionpack before 8.0.5.2: Action Pack advisories - ActionController::Parameters#each_key exposes unpermitted keys (mass assignment, CVSS 7.5), signed/encrypted cookie read confusion, Live streaming buffer close, Accept/format negotiation cache poisoning, CacheStore session write-back and non-cookie session-store CSRF handling
actionpack: Rails actionpack 8.1.0 before 8.1.4.1: Action Pack advisories - ActionController::Parameters#each_key exposes unpermitted keys (mass assignment, CVSS 7.5), signed/encrypted cookie read confusion, Live streaming buffer close, Accept/format negotiation cache poisoning, CacheStore session write-back and non-cookie session-store CSRF handling - Added to NewScan
- 2026-11-11
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
COMPONENT VERSION RANGE
NewScan fingerprints actionpack from its response and reports this CVE when the detected version falls inside the affected range below.
COMPONENT VERSION RANGE
NewScan fingerprints actionpack from its response and reports this CVE when the detected version falls inside the affected range below.
Related CVEs covered by this detection
The same shipped rule and upgrade also cover these identifiers:
References
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