Bug 2497474 - CVE-2026-8927 davix: libcurl: Information disclosure due to uncleared proxy authentication state [epel-all]
Summary: CVE-2026-8927 davix: libcurl: Information disclosure due to uncleared proxy a...
Keywords:
Status: ASSIGNED
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: davix
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Mihai Patrascoiu
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["8769b971-d276-4ed3-a339-1...
Depends On:
Blocks: CVE-2026-8927
TreeView+ depends on / blocked
 
Reported: 2026-07-06 20:18 UTC by Jon Moroney
Modified: 2026-09-23 03:19 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-09-07 06:03:31 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Jon Moroney 2026-07-06 20:18:47 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 reusing a libcurl handle for sequential transfers driven by
environment-variable proxy configuration, libcurl fails to clear the proxy
authentication state between requests. Specifically, if the initial transfer
authenticates against `proxyA` using Digest auth, a subsequent transfer routed
through `proxyB` erroneously leaks the `Proxy-Authorization:` header intended
solely for `proxyA`.
Comment 1 Mihai Patrascoiu 2026-07-15 14:30:02 UTC 
Hello,

This CVE affects Davix on EPEL8 platform, as over there we bundle libcurl v7.69.0.

Can patch our Davix codebase once upstream patch backport is published for curl v7.69.0.

Cheers,
Mihai
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