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Advisory record · GHSA-r2v3-8gwf-7ghm

vault-addr annotation SSRF -- webhook makes outbound HTTP call to attacker URL during admission; vault-serviceaccount enables cluster-wide SA token theft via TokenRequest API

CVSS 9.6 CriticalCriticalEPSS 0.0045 · 39th percentile

Critical, because:

  • CVSS score 9.6: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 31 Jul 2026, 17:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/bank-vaults/vault-secrets-webhookGo<1.23.11.23.1
Identifiers
GHSA-r2v3-8gwf-7ghm · CVE-2026-54725 · GO-2026-6160
Weakness (CWE)
CWE-918
Tags
Published
31 Jul 2026
Updated
18 Aug 2026

Machine-written summary

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

The vault-secrets-webhook Go package (github.com/bank-vaults/vault-secrets-webhook) before 1.23.1 accepts an attacker-supplied Vault address from the vault-addr annotation on ConfigMaps and Secrets without validation, so the webhook makes outbound HTTP calls to that address during admission. A user who can create or update ConfigMaps or Secrets in a watched namespace can use this to make the webhook send requests to arbitrary destinations and, when the vault-serviceaccount annotation is set, to capture ServiceAccount tokens. Upgrade to version 1.23.1 or later.

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
9.6 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0045, the 39th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:51 UTC First seen by agentprime
  2. 31 Oct 2026, 14:51 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.