CVE-2026-46354
Authentication bypass in Coder azureidentity allows session-token theft via forged PKCS#7 content.
Is CVE-2026-46354 being exploited?
Not confirmed. CVE-2026-46354 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-46354?
CVE-2026-46354 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-46354?
Yes. A fix has been recorded for CVE-2026-46354. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-46354 affect?
CVE-2026-46354 affects Coder (remote dev env via Terraform) versions prior to 2.24.5, Coder versions prior to 2.29.13, Coder versions prior to 2.30.8, Coder versions prior to 2.31.12, and 3 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-46354?
Upgrade to the patched Coder versions or switch Azure templates to token authentication.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Forge vmId in PKCS#7 to obtain workspace agent session token, enabling unauthorized access to dev workspaces and code.
Immediate action required
- affected>= 2.33.0-rc.0 and < 2.33.3
- affected>= 2.32.0-rc.0 and < 2.32.2
- affected>= 2.31.0 and < 2.31.12
- affected>= 2.30.0 and < 2.30.8
- affected>= 2.29.0 and < 2.29.13
- affected< 2.24.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.