Operation on a Resource after Expiration or Release Affecting github.com/juju/juju/apiserver package, versions <4.0-rc1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMJUJUJUJUAPISERVER-15146726
- published29 Jan 2026
- disclosed28 Jan 2026
- creditUnknown
Introduced: 28 Jan 2026
CVE-2026-1237 Â (opens in a new tab)How to fix?
Upgrade github.com/juju/juju/apiserver to version 4.0-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Operation on a Resource after Expiration or Release in the macaroon validation for cross-model authorization. An attacker can maintain unauthorized access to resources by crafting and submitting an invalid macaroon that is incorrectly accepted by the controller, even after permissions have been revoked or expired.