PatchTheCVElibsixel vulnerabilities and fixes
Recent CVEs affecting libsixel, with upgrade or downgrade steps. 3 tracked.
libsixel has 3 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 3. Most recent: 2026-05-14. Highest priority: CVE-2026-44637 (score 31/100).
- CVE-2026-44637 HIGH 7.1 UPGRADE libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel
- CVE-2026-44636 HIGH 7.4 UPGRADE libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel
- CVE-2026-44638 LOW 2.5 UPGRADE libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel
FAQ
How do I fix libsixel vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is libsixel being exploited right now?
None of the tracked libsixel CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which libsixel CVE should I patch first?
CVE-2026-44637 currently ranks highest (31/100): libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel.