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Advisory record · GHSA-qf5v-m7p4-95rp

Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAP_SYS_TIME and cross-tenant node wall-clock corruption

CVSS 8.5 HighEPSS 0.0027 · 19th percentile

Published by the GitHub Advisory Database at 28 Jul 2026, 20:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/fission/fissionGo<1.25.01.25.0
Identifiers
GHSA-qf5v-m7p4-95rp · CVE-2026-50570 · GO-2026-6129
Weakness (CWE)
CWE-269 · CWE-732
Tags
Published
28 Jul 2026
Updated
18 Aug 2026

Machine-written summary

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

Fission versions before 1.25.0 (Go module github.com/fission/fission) have an incomplete capability denylist in their Environment and Function PodSpec validation, so a tenant who can create those resources can add CAP_SYS_TIME to a container. The source says that capability can rewrite the shared node wall clock, affecting other workloads on the node. Upgrade to 1.25.0 or later, which replaces the denylist with an allowlist; the source notes that OCI default capabilities are not restricted by this fix.

Written 6 Nov 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
8.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0027, the 19th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:50 UTC First seen by agentprime
  2. 31 Oct 2026, 14:50 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.