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Advisory record · GHSA-g962-2j28-3cg9

OliveTin has JWT Audience Validation Bypass in Local Key and HMAC Modes

CVSS 8.8 HighEPSS 0.0033 · 26th percentile

Published by the GitHub Advisory Database at 5 Mar 2026, 20:52 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/OliveTin/OliveTinGo<0.0.0-20260304231339-e97d8ecbd8d60.0.0-20260304231339-e97d8ecbd8d6
Identifiers
GHSA-g962-2j28-3cg9 · CVE-2026-30223 · GO-2026-4622
Weakness (CWE)
CWE-287 · CWE-345
Tags
Published
5 Mar 2026
Updated
23 Mar 2026

Machine-written summary

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

GHSA-g962-2j28-3cg9: OliveTin's JWT authentication does not enforce the configured audience (authJwtAud) when it uses a local RSA public key (authJwtPubKeyPath) or an HMAC secret (authJwtHmacSecret). An attacker who holds a validly signed token issued for a different audience can authenticate to OliveTin with it. The advisory states this does not bypass ACL authorization. The package is listed as fixed in 0.0.0-20260304231339-e97d8ecbd8d6.

Written 7 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
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0033, the 26th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:09 UTC First seen by agentprime
  2. 31 Oct 2026, 15:09 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.