Bug 2452157

Summary: CVE-2026-33416 libpng15: libpng: Arbitrary code execution due to use-after-free vulnerability [fedora-43]
Product: [Fedora] Fedora Reporter: Vipul Nair <vinair>
Component: libpng15Assignee: Michal Hlavinka <mhlavink>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: mhlavink, nforro, phracek
Target Milestone: ---Keywords: Reopened, Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["47c6ec22-7f7b-4729-9e00-fbdcf881a1f1"]}
Fixed In Version: libpng15-1.5.30-27.fc46 libpng15-1.5.30-27.fc44 libpng15-1.5.30-27.fc43 libpng15-1.5.30-27.fc45 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-10-21 01:12:59 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2451805    

Description Vipul Nair 2026-03-27 07:46:04 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Fedora Update System 2026-10-11 22:10:57 UTC
FEDORA-2026-fc041839f8 (libpng15-1.5.30-27.fc46) has been submitted as an update to Fedora 46.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-fc041839f8

Comment 2 Fedora Update System 2026-10-11 22:13:18 UTC
FEDORA-2026-fc041839f8 (libpng15-1.5.30-27.fc46) has been pushed to the Fedora 46 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2026-10-12 05:13:34 UTC
FEDORA-2026-7facd4fad2 (libpng15-1.5.30-27.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-7facd4fad2

Comment 4 Fedora Update System 2026-10-12 05:13:35 UTC
FEDORA-2026-fe765b13ce (libpng15-1.5.30-27.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-fe765b13ce

Comment 5 Fedora Update System 2026-10-12 05:13:39 UTC
FEDORA-2026-095025bfaa (libpng15-1.5.30-27.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-095025bfaa

Comment 6 Fedora Update System 2026-10-13 01:58:43 UTC
FEDORA-2026-fe765b13ce has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-fe765b13ce`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-fe765b13ce

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2026-10-13 02:33:15 UTC
FEDORA-2026-7facd4fad2 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-7facd4fad2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-7facd4fad2

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2026-10-13 03:01:57 UTC
FEDORA-2026-095025bfaa has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-095025bfaa`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-095025bfaa

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 9 Fedora Update System 2026-10-21 01:12:59 UTC
FEDORA-2026-7facd4fad2 (libpng15-1.5.30-27.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-10-21 01:34:57 UTC
FEDORA-2026-095025bfaa (libpng15-1.5.30-27.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-10-31 18:38:30 UTC
FEDORA-2026-fe765b13ce (libpng15-1.5.30-27.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.