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Advisory record · GHSA-gwfr-jfjf-92vv

Grav has Insecure Deserialization in File Cache

CVSS 2.3 LowEPSS 0.0022 · 13th percentile

Published by the GitHub Advisory Database at 5 May 2026, 21:29 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
getgrav/gravPackagist<2.0.0-beta.22.0.0-beta.2
Identifiers
GHSA-gwfr-jfjf-92vv · CVE-2026-7317 · PKSA-t2z1-v63n-9cpk
Weakness (CWE)
CWE-20 · CWE-502
Tags
Published
5 May 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Grav (getgrav/grav) before 2.0.0-beta.2 has an insecure deserialization flaw in its file cache adapter, which unserializes cache data with object instantiation allowed. An attacker who can tamper with cache files may be able to trigger object magic methods, and the source gives few other details. Upgrade to 2.0.0-beta.2, which signs cache payloads and rejects tampered files.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
2.3 Low 4.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CNA (VulDB)
  • CISA KEV Not listed.
  • EPSS 0.0022, the 13th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:59 UTC First seen by agentprime
  2. 31 Oct 2026, 13:59 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.