Bug 2537408 - CVE-2026-80230 curl: curl: Public key pinning bypass allows unauthenticated connections [fedora-all]
Summary: CVE-2026-80230 curl: curl: Public key pinning bypass allows unauthenticated c...
Keywords:
Status: ON_QA
Alias: None
Product: Fedora
Classification: Fedora
Component: curl
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Jan Macku
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["c68d41c5-c288-4043-bb2e-0...
Depends On:
Blocks: CVE-2026-80230
TreeView+ depends on / blocked
 
Reported: 2026-09-21 14:07 UTC by Srikanth Balasubramanian
Modified: 2026-10-16 21:14 UTC (History)
7 users (show)

Fixed In Version: curl-8.18.0-14.fc44
Clone Of:
Environment:
Last Closed: 2026-10-14 01:26:23 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Srikanth Balasubramanian 2026-09-21 14:07:54 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.

When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable
standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and
`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on
connections established without a presented server certificate. Bypassing the
pinning check under these disabled-verification conditions allows
unauthenticated connections to succeed when they should be rejected.

Comment 1 Fedora Update System 2026-10-09 09:51:11 UTC
FEDORA-2026-b60c369f26 (curl-8.21.0-8.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-b60c369f26

Comment 2 Fedora Update System 2026-10-10 02:22:44 UTC
FEDORA-2026-b60c369f26 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-b60c369f26`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-b60c369f26

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

Comment 3 Fedora Update System 2026-10-12 11:46:12 UTC
FEDORA-2026-a06b828d65 (curl-8.18.0-14.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a06b828d65

Comment 4 Fedora Update System 2026-10-13 02:33:42 UTC
FEDORA-2026-a06b828d65 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-a06b828d65`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a06b828d65

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

Comment 5 Fedora Update System 2026-10-14 01:26:23 UTC
FEDORA-2026-a06b828d65 (curl-8.18.0-14.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-10-15 13:23:28 UTC
FEDORA-2026-d65da12723 (curl-8.15.0-12.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d65da12723

Comment 7 Fedora Update System 2026-10-16 21:14:36 UTC
FEDORA-2026-d65da12723 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-d65da12723`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d65da12723

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


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