CVE-2026-21413
Heap-based overflow in LibRaw lossless_jpeg_load_raw could allow code execution via crafted JPEG.
Is CVE-2026-21413 being exploited?
Not confirmed. CVE-2026-21413 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 0.93% probability of exploitation in the next 30 days.
How severe is CVE-2026-21413?
CVE-2026-21413 is rated Critical with a CVSS score of 9.8. 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-2026-21413?
Yes. A fix has been recorded for CVE-2026-21413. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-21413 affect?
CVE-2026-21413 affects LibRaw, LibRaw-based applications, image processing tools. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-21413?
Patch when available; avoid loading untrusted images; monitor advisories
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Heap overflow via processing crafted JPEGs; may lead to arbitrary code execution or crash in LibRaw-based apps.
Immediate action required
- affectedCommit 0b56545
- affectedCommit d20315b
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.