CVE-2026-102289: zizmorcore zizmor · Sensitive Data in Logs
Affects zizmorcore zizmorSource CVE Database V5
Not known to be exploited · CVSS 7.0 High · fixed in 1.28.0 : patch zizmorcore zizmor soon.
Data as of 9 Nov 2026, 21:49 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 4.0 | 7.0 |
|---|
- Patch
- Available – fixed in 1.28.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| zizmorcorezizmor | Affected
| Fixed in– |
AI-suggested
Upgrade to zizmor version 1.28.0 or later where this vulnerability is fixed. Until then, avoid enabling verbose or debug logging that serializes sensitive tokens. Use the --offline option which clears the token before logging. Restrict access to CI logs and support artifacts to trusted parties only to reduce exposure risk.
Description
CVE-2026-102289 is a vulnerability in zizmor version 1.27.0 where sensitive GitHub token credentials are logged in cleartext to stderr when debug logging is enabled. This occurs because the debug logging serializes the parsed application configuration including tokens supplied via environment variables or command-line options. Exposure of these tokens in logs can allow unauthorized parties who access the logs to misuse the credentials. The issue is fixed in version 1.28.0.
References
- github.com/zizmorcore/zizmor/security/advisories/GHSA-f42p-wjw5-97qh (opens in a new tab)
- github.com/zizmorcore/zizmor/pull/2213 (opens in a new tab)
- github.com/zizmorcore/zizmor/pull/2215 (opens in a new tab)
- github.com/zizmorcore/zizmor/commit/0731e01706af273be860d3d221e4d122e6741b6f (opens in a new tab)
- github.com/zizmorcore/zizmor/commit/724d0e86f4c073c3dc64507fb6c39bc20e46a48f (opens in a new tab)
- github.com/zizmorcore/zizmor/releases/tag/v1.28.0 (opens in a new tab)