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Advisory record · GHSA-2hw4-c9m4-f2fj

knative.dev/pkg admission webhooks allow unbounded request-body memory exhaustion

CVSS 6.5 MediumEPSS 0.0038 · 31st percentile

Published by the GitHub Advisory Database at 28 Oct 2026, 21:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
knative.dev/pkgGo<0.0.0-20260531000007-52dbd5ece63f0.0.0-20260531000007-52dbd5ece63f
Identifiers
GHSA-2hw4-c9m4-f2fj · CVE-2026-54462 · GO-2026-6880
Weakness (CWE)
CWE-770
Tags
Published
28 Oct 2026
Updated
5 Nov 2026

Machine-written summary

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

knative.dev/pkg before 0.0.0-20260531000007-52dbd5ece63f reads admission webhook request bodies with no size limit. A client that can reach a webhook port over the network can send an oversized body, exhausting memory and crashing the controller. Upgrade to 0.0.0-20260531000007-52dbd5ece63f or later.

Written 1 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
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0038, the 31st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 27 Oct 2026, 16:12 UTC Confirmed by the CVE List
  2. 27 Oct 2026, 17:17 UTC Confirmed by NVD
  3. 31 Oct 2026, 14:11 UTC First seen by agentprime
  4. 31 Oct 2026, 14:11 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.