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CVE-2026-33021

🗓️ 14 Apr 2026 23:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 3 Views

Libsixel before 1.8.7 has a use-after-free in sixel_encoder_encode_bytes that frees the caller buffer on resize, risking code execution.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-33021
14 Apr 202621:57
attackerkb
Circl
CVE-2026-33021
15 Apr 202600:03
circl
CNNVD
libsixel 资源管理错误漏洞
14 Apr 202600:00
cnnvd
CVE
CVE-2026-33021
14 Apr 202621:57
cve
Cvelist
CVE-2026-33021 libsixel: Use-after-free in sixel_encoder_encode_bytes()
14 Apr 202621:57
cvelist
Debian CVE
CVE-2026-33021
14 Apr 202621:57
debiancve
EUVD
EUVD-2026-22746
14 Apr 202621:57
euvd
NVD
CVE-2026-33021
14 Apr 202623:16
nvd
OSV
DEBIAN-CVE-2026-33021
14 Apr 202623:16
osv
OSV
UBUNTU-CVE-2026-33021
14 Apr 202623:16
osv
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu18.04anylibsixel0libsixel_0_any.deb
Ubuntu20.04anylibsixel0libsixel_0_any.deb
Ubuntu22.04anylibsixel0libsixel_0_any.deb
Ubuntu24.04anylibsixel0libsixel_0_any.deb
Ubuntu25.10anylibsixel0libsixel_0_any.deb
Ubuntu26.04anylibsixel0libsixel_0_any.deb

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16 Apr 2026 02:57Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.3
EPSS0.00247
SSVC
3