CVE-2026-34543
HIGH7.5EPSS 0.02%OpenEXR: Heap information disclosure in PXR24 decompression via unchecked decompressed size (undo_pxr24_impl)
發布日:2026/4/3修改日:2026/4/28
描述
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.8, sensitive information from heap memory may be leaked through the decoded pixel data (information disclosure). This occurs under default settings; simply reading a malicious EXR file is sufficient to trigger the issue, without any user interaction. This issue has been patched in version 3.4.8.
受影響套件(2)
- Debian/openexrfrom 0
- PyPI/openexr>= 3.4.0, < 3.4.8
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
參考連結(6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-34543
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-34543
- PATCHhttps://github.com/AcademySoftwareFoundation/openexr
- WEBhttps://github.com/AcademySoftwareFoundation/openexr/commit/5f6d0aaa9e43802917af7db90f181e88e083d3b8
- WEBhttps://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8
- WEBhttps://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-vc68-257w-m432