Bug 2488514

Summary:	CVE-2026-27587 caddy: Caddy: Access control bypass due to improper handling of percent-escape sequences in HTTP path matcher [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Carl George 🤠 <carlwgeorge>
Component:	caddy	Assignee:	Carl George 🤠 <carlwgeorge>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	carlwgeorge, extras-qa, go-sig, jmoroney, ngompa13
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["f582de9e-6ed8-47f3-862b-99671728fcd0"]}
Fixed In Version:	caddy-2.11.4-1.fc45 caddy-2.10.2-9.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:	2442422	Environment:
Last Closed:	2026-07-02 01:09:08 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:	2442398

Description Carl George 🤠 2026-06-12 20:04:26 UTC

+++ This bug was initially created as a clone of Bug #2442422 +++

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 2026-06-23 16:58:54 UTC

FEDORA-2026-950cac64f2 (caddy-2.10.2-9.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-950cac64f2

Comment 2 Fedora Update System 2026-06-23 21:10:33 UTC

FEDORA-2026-3dc324bd9a (caddy-2.10.2-9.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3dc324bd9a

Comment 3 Fedora Update System 2026-06-24 01:20:33 UTC

FEDORA-2026-950cac64f2 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-2026-950cac64f2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-950cac64f2

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

Comment 4 Fedora Update System 2026-06-24 02:01:13 UTC

FEDORA-2026-3dc324bd9a 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-2026-3dc324bd9a`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3dc324bd9a

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

Comment 5 Fedora Update System 2026-07-02 01:09:08 UTC

FEDORA-2026-950cac64f2 (caddy-2.10.2-9.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 2026-07-02 01:09:09 UTC

FEDORA-2026-3dc324bd9a (caddy-2.10.2-9.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.