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VulnerabilityPublished

CVE-2026-54462: Knative pkg provides common packages shared across Knative repositories

Source GCVE Database

0
Authoritative record:CVE-2026-54462· Medium 6.5

Not known to be exploited · CVSS 6.5 Medium : upgrade to 0.0.0-20260531000007-52dbd5ece63f when convenient.

Data as of 27 Oct 2026, 19:43 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 0.0.0-20260531000007-52dbd5ece63f
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade pkg to 0.0.0-20260531000007-52dbd5ece63f.

Affected software

ProductAffectedFixed in
knativepkgAffected
  • <0.0.0-20260531000007-52dbd5ece63f
Fixed in
  • 0.0.0-20260531000007-52dbd5ece63f

AI-suggested

Upgrade to version 0.0.0-20260531000007-52dbd5ece63f or later, where the issue is fixed by enforcing body size limits on admission webhook requests. No other mitigation is indicated. Since this is not a cloud service, users must apply the patch themselves.

Description

A vulnerability in the Knative pkg common packages allows an attacker to send an oversized POST request to an admission webhook, causing excessive memory consumption and potential out-of-memory (OOM) termination of the controller pod. This affects all downstream consumers using the shared webhook server, including Knative, Tekton, KEDA, Sigstore policy-controller, and Kpack. The issue is fixed in version 0.0.0-20260531000007-52dbd5ece63f.

References

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