CVE-2021-36691
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase:...
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- Record
CVE-2021-36691- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-617
- Updated
- 2026-11-02
CVE List No score
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- Record
CVE-2021-36691- Updated
- 2026-11-02
EUVDEUVD-2021-23286 No score
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- Record
EUVD-2021-23286- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fg2p-g438-rjr4 No score
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase:...
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- Record
GHSA-fg2p-g438-rjr4- Weakness
- CWE-617
- Updated
- 2026-11-02
OSV
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- Record
CVE-2021-36691- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-36691
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- Record
DEBIAN-CVE-2021-36691- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-36691
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- Record
UBUNTU-CVE-2021-36691- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
jpeg-xlDebian:12 |
All versions, plus listed versions 0.10.3-10.10.3-20.10.3-30.10.3-40.10.3-5 Show 45 moreShow less0.10.4-10.10.4-20.11.1-10.11.1-20.11.1-30.11.1-40.11.1-50.11.1-60.11.2-0.10.11.2-0.1~deb13u10.11.2-0.1~deb13u20.11.2-0.1~deb13u30.11.2-10.11.2-20.11.2-30.11.2-3~exp10.11.2-40.11.2-50.11.2-5.10.7.0-100.7.0-10+deb12u10.7.0-10.10.7.0-10.20.8.0-10.8.0~git20221120.4167056-10.8.0~git20221123.8bf8deb-10.8.0~git20230102.26a5158-10.8.0~git20230118.bcacd51-10.8.0~git20230125.a67e970-10.8.1-10.8.1-20.8.2-10.8.2-20.8.2-30.8.2-40.9.0~git20230612.38b629f-10.9.0~git20230612.38b629f-20.9.0~git20230612.38b629f-30.9.0~git20230612.38b629f-40.9.0~git20230623.689da0f-10.9.0~git20230623.689da0f-20.9.0~git20230623.689da0f-30.9.0~git20230623.689da0f-40.9.2-10.9.2-10 |
None known |
jpeg-xlDebian:13 |
All versions, plus listed versions 0.11.1-40.11.1-50.11.1-60.11.2-0.10.11.2-0.1~deb13u1 Show 9 moreShow less0.11.2-0.1~deb13u20.11.2-0.1~deb13u30.11.2-10.11.2-20.11.2-30.11.2-3~exp10.11.2-40.11.2-50.11.2-5.1 |
None known |
jpeg-xlDebian:14 |
All versions, plus listed versions 0.11.1-40.11.1-50.11.1-60.11.2-0.10.11.2-0.1~deb13u1 Show 9 moreShow less0.11.2-0.1~deb13u20.11.2-0.1~deb13u30.11.2-10.11.2-20.11.2-30.11.2-3~exp10.11.2-40.11.2-50.11.2-5.1 |
None known |
jpeg-xlUbuntu:24.04:LTS |
All versions, plus listed versions 0.7.0-10ubuntu20.7.0-10.2ubuntu10.7.0-10.2ubuntu40.7.0-10.2ubuntu50.7.0-10.2ubuntu60.7.0-10.2ubuntu6.1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-36691 is a high vulnerability (CVSS 7.5) in Libjxl Project Libjxl, published August 30, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.07%, the 65th percentile. No source names a fixed version.
References
Left out here: 8 versions. The JSON record has them.