https://bugzilla.redhat.com/show_bug.cgi?id=2500952

            Bug ID: 2500952
           Summary: CVE-2026-15747 perl-Mojolicious: Mojolicious:
                    Information disclosure via BREACH compression oracle
                    [epel-all]
           Product: Fedora EPEL
           Version: epel10
            Status: NEW
        Whiteboard: {"flaws": ["e36bc75e-1724-474d-9fb7-d241f546f9e3"]}
         Component: perl-Mojolicious
          Keywords: Security, SecurityTracking
          Severity: medium
          Priority: medium
          Assignee: [email protected]
          Reporter: [email protected]
        QA Contact: [email protected]
                CC: [email protected],
                    [email protected],
                    [email protected], [email protected]
            Blocks: 2500234
  Target Milestone: ---
    Classification: Fedora



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.

Mojolicious versions from 4.59 before 9.48 for Perl expose a stable
representation of the session CSRF token to a BREACH compression oracle.

_csrf_token generates and caches one token per session and returns the same
value on every call, and _csrf_field places that value in a hidden `csrf_token`
input. When a response carrying the token also echoes attacker-controlled input
and is gzip-compressed, the chosen values and the resulting compressed lengths
form a BREACH oracle.

An attacker able to query it can recover the token and pass csrf_protect
validation.


-- 
You are receiving this mail because:
You are on the CC list for the bug.
https://bugzilla.redhat.com/show_bug.cgi?id=2500952

Report this comment as SPAM: 
https://bugzilla.redhat.com/enter_bug.cgi?product=Bugzilla&format=report-spam&short_desc=Report%20of%20Bug%202500952%23c0

-- 
_______________________________________________
perl-devel mailing list -- [email protected]
To unsubscribe send an email to [email protected]
Fedora Code of Conduct: 
https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: 
https://lists.fedoraproject.org/archives/list/[email protected]
Do not reply to spam, report it: 
https://forge.fedoraproject.org/infra/tickets/issues/new

Reply via email to