CVE-2026-82454
Auth bypass in Omnivore API Apple Sign-In JWT alg handling enabling account impersonation.
Is CVE-2026-82454 being exploited?
Not confirmed. CVE-2026-82454 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 0.23% probability of exploitation in the next 30 days.
How severe is CVE-2026-82454?
CVE-2026-82454 is rated Critical with a CVSS score of 9.3. 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-2026-82454?
Yes. A fix has been recorded for CVE-2026-82454. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-82454 affect?
CVE-2026-82454 affects Omnivore API (packages/api) before commit abf53d6, jsonwebtoken v8 (used by Omnivore). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-82454?
Update Omnivore to patched commit (abf53d6 / v0.227.0+) and upgrade jsonwebtoken to v9+; rotate sessions.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authentication bypass: attacker forges Apple Sign-In JWT (sets alg=HS256) and impersonates any Apple-linked account.
Immediate action required
- affected< abf53d650875
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.