CVE-2026-12912
Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image
02 Description
Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.43% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 37.2% of scored records. A rank, not a probability.
- NVD base score
- 7.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-15.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-06-29 16:31Z4 MO AGO
- Last updated
- 2026-10-15 12:06Z14 DAYS AGO
- Reserved
- 2026-06-22
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.3)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-122Heap-based Buffer OverflowVariant
- Data version
- 5.2
- Document digest
- ff35b83e118caf7d66ad55e61bb4ab3818073a7da15e63a07699dce17bf177ff
05 Affected products
06 References
- access.redhat.comRHSA-2026:34890https://access.redhat.com/errata/RHSA-2026:34890
- access.redhat.comRHSA-2026:41892https://access.redhat.com/errata/RHSA-2026:41892
- access.redhat.comRHSA-2026:42668https://access.redhat.com/errata/RHSA-2026:42668
- access.redhat.comRHSA-2026:47183https://access.redhat.com/errata/RHSA-2026:47183
- access.redhat.comRHSA-2026:47184https://access.redhat.com/errata/RHSA-2026:47184
- access.redhat.comRHSA-2026:49671https://access.redhat.com/errata/RHSA-2026:49671
- access.redhat.comRHSA-2026:50774https://access.redhat.com/errata/RHSA-2026:50774
- access.redhat.comRHSA-2026:54638https://access.redhat.com/errata/RHSA-2026:54638
- access.redhat.comRHSA-2026:54640https://access.redhat.com/errata/RHSA-2026:54640
- access.redhat.comRHSA-2026:54642https://access.redhat.com/errata/RHSA-2026:54642
- access.redhat.comRHSA-2026:58545https://access.redhat.com/errata/RHSA-2026:58545
- access.redhat.comRHSA-2026:58553https://access.redhat.com/errata/RHSA-2026:58553
- access.redhat.comRHSA-2026:58554https://access.redhat.com/errata/RHSA-2026:58554
- access.redhat.comRHSA-2026:58556https://access.redhat.com/errata/RHSA-2026:58556
- access.redhat.comRHSA-2026:61657https://access.redhat.com/errata/RHSA-2026:61657
- access.redhat.comRHSA-2026:69292https://access.redhat.com/errata/RHSA-2026:69292
- access.redhat.comRHSA-2026:73909https://access.redhat.com/errata/RHSA-2026:73909
- access.redhat.comRHSA-2026:73959https://access.redhat.com/errata/RHSA-2026:73959
- access.redhat.comRHSA-2026:73960https://access.redhat.com/errata/RHSA-2026:73960
- access.redhat.comRHSA-2026:73961https://access.redhat.com/errata/RHSA-2026:73961
- access.redhat.comRHSA-2026:73962https://access.redhat.com/errata/RHSA-2026:73962
- access.redhat.comRHSA-2026:74458https://access.redhat.com/errata/RHSA-2026:74458
- access.redhat.comRHSA-2026:74459https://access.redhat.com/errata/RHSA-2026:74459
- access.redhat.comRHSA-2026:74460https://access.redhat.com/errata/RHSA-2026:74460
- access.redhat.comRHSA-2026:74461https://access.redhat.com/errata/RHSA-2026:74461
- access.redhat.comRHSA-2026:74462https://access.redhat.com/errata/RHSA-2026:74462
- access.redhat.comRHSA-2026:74463https://access.redhat.com/errata/RHSA-2026:74463
- access.redhat.comRHSA-2026:74674https://access.redhat.com/errata/RHSA-2026:74674
- access.redhat.comRHSA-2026:83550https://access.redhat.com/errata/RHSA-2026:83550
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-12912
- bugzilla.redhat.comRHBZ#2492871https://bugzilla.redhat.com/show_bug.cgi?id=2492871
- gitlab.comhttps://gitlab.com/libtiff/libtiff/-/merge_requests/873
- gitlab.comhttps://gitlab.com/libtiff/libtiff/-/work_items/824
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12912.json
07 Fixed in
AlmaLinux 8
- compat-libtiff3 Fixed in 3.9.4-16.el8_10
- libtiff Fixed in 4.0.9-38.el8_10
- libtiff-devel Fixed in 4.0.9-38.el8_10
- libtiff-tools Fixed in 4.0.9-38.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- libtiff Fixed in 4.4.0-18.el9_8.1
- libtiff-devel Fixed in 4.4.0-18.el9_8.1
- libtiff-tools Fixed in 4.4.0-18.el9_8.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- libtiff Fixed in 4.6.0-8.el10_2.4
- libtiff-devel Fixed in 4.6.0-8.el10_2.4
- libtiff-tools Fixed in 4.6.0-8.el10_2.4
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- compat-libtiff3 Fixed in 3.9.4-16.el8_10
- libtiff Fixed in 4.0.9-38.el8_10
- libtiff-devel Fixed in 4.0.9-38.el8_10
- libtiff-tools Fixed in 4.0.9-38.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- libtiff Fixed in 4.4.0-18.el9_8.1
- libtiff-devel Fixed in 4.4.0-18.el9_8.1
- libtiff-tools Fixed in 4.4.0-18.el9_8.1
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- libtiff Fixed in 4.6.0-8.el10_2.4
- libtiff-devel Fixed in 4.6.0-8.el10_2.4
- libtiff-tools Fixed in 4.6.0-8.el10_2.4
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- tiff No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- tiff Fixed in 4.7.0-3+deb13u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- tiff Fixed in 4.7.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- neuron No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- neuron No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- neuron No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- qtwebengine-opensource-src No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- gdal No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- gdal No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 24.04 LTS
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 26.04 LTS
- qtwebengine-opensource-src No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.