Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, IDManifest::init() reconstructs strings from a prefix-compressed representation. If the previous string is longer than 255 bytes, the next string is expected to begin with a 2-byte prefix length. The code reads stringList[i][0] and stringList[i][1] without checking that the current string has at least two bytes. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AcademySoftwareFoundation | openexr | >= 3.0.0, < 3.2.9, >= 3.3.0, < 3.3.11, >= 3.4.0, < 3.4.11 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openexr | 3.4.14-0.1 | — |
| Debian 13 | openexr | 3.2.12-1~deb13u1 | — |
| Debian 12 | openexr | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | openexr | No fix yet | — |
| Ubuntu 25.10 | openexr | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | openexr | No fix yet | — |
| Ubuntu Pro 24.04 LTS | openexr | No fix yet | — |
| Ubuntu Pro 22.04 LTS | openexr | No fix yet | — |
| Ubuntu Pro 20.04 LTS | openexr | No fix yet | — |
| Ubuntu Pro 18.04 LTS | openexr | No fix yet | — |
| Ubuntu Pro 16.04 LTS | openexr | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | openexr +2 | 3.1.10-8.el10_2.3 | RHSA-2026:38499 |
| RHEL 9 | openexr +2 | 3.1.1-3.el9_8.3 | RHSA-2026:38498 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | openexr +2 | 3.1.10-8.el10_0.3 | RHSA-2026:39024 |
| RHEL 9.6 EUS | openexr +2 | 3.1.1-3.el9_6.3 | RHSA-2026:39025 |
| RHEL 9.4 E4S | openexr +1 | 3.1.1-2.el9_4.4 | RHSA-2026:39026 |
| RHEL 9.2 E4S | openexr +1 | 3.1.1-2.el9_2.4 | RHSA-2026:39027 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | openexr +2 | 3.1.10-8.el10_2.3 | ALSA-2026:38499 |
| AlmaLinux 9 | openexr +2 | 3.1.1-3.el9_8.3 | ALSA-2026:38498 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | openexr | 3.1.10-8.el10_2.3 | RLSA-2026:38499 |
| Rocky Linux 9 | openexr | 3.1.1-3.el9_8.3 | RLSA-2026:38498 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openexr | 3.4.11-1.1 | openSUSE-SU-2026:10772-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openexr | 3.4.11-r0 | — |
| Alpine v3.23 | openexr | 3.4.13-r0 | — |
| Alpine v3.22 | openexr | 3.3.11-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | openexr +2 | 3.1.5-1.amzn2023.0.11 | ALAS2023-2026-1713 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | openexr +2 | 3.1.10-8.el10_2.3 | ELSA-2026-38499 |
| Oracle Linux 9 | openexr +2 | 3.1.1-3.el9_8.3 | ELSA-2026-38498 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | openexr +7 | 3.4.10-r0 | — |
| Wolfi rolling | openexr-libilmthread | 3.4.11-r0 | — |
Advisories 15
- WID-SEC-2026-2293 Red Hat Enterprise Linux (openexr): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- ALSA-2026:38498 Important: openexr security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:38499 Important: openexr security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:39027 Red Hat Security Advisory: openexr security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:39026 Red Hat Security Advisory: openexr security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:39024 Red Hat Security Advisory: openexr security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:39025 Red Hat Security Advisory: openexr security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:38499 Red Hat Security Advisory: openexr security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:38498 Red Hat Security Advisory: openexr security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- ELSA-2026-38499 Important: openexr security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 16, 2026
- RLSA-2026:38498 Important: openexr security update Rocky Linux Security Advisories · Jul 14, 2026
- RLSA-2026:38499 Important: openexr security update Rocky Linux Security Advisories · Jul 14, 2026
- ELSA-2026-38498 Important: openexr security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 13, 2026
- ALAS2023-2026-1713 Important: openexr security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 26, 2026
- openSUSE-SU-2026:10772-1 libIex-3_4-33-3.4.11-1.1 on GA media SUSE / openSUSE Security Updates · May 14, 2026