Mojolicious is a real-time web framework for Perl. Prior to 9.48, the Mojolicious CSRF helpers csrf_field, csrf_token, and csrf_protect reuse an unchanged per-session token in rendered HTML. When response compression is enabled and attacker-influenced content is reflected in the same response, an unauthenticated attacker who can induce many victim requests and observe response sizes can use a BREACH compression side channel to recover the token and forge cross-site requests. API-only deployments that never render the token in HTML are not affected. This issue is fixed in version 9.48.
This CVE has been withdrawn by MITRE
MITRE marked CVE-2026-77568 as REJECTED on . It is no longer considered a valid vulnerability record. The original content below is preserved for historical reference only.
Reason given by MITRE
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2026-15747. Reason: This candidate is a duplicate of CVE-2026-15747. Notes: All CVE users should reference CVE-2026-15747 instead of this candidate.
CVE-2026-77568
✕ Withdrawn — historical dataMEDIUMPre-NVD 4.2
4.2CVSS
- CVSS v3
- 4.2
- EchelonGraph score
- Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
- EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- —Not applicable: this CVE ID was withdrawn
Published
September 18, 2026
Last Modified
September 18, 2026
References (2)
- security-advisories@githubhttps://github.com/mojolicious/mojo/commit/01921fbbbbeca2d1397e082d4a647f9b84c24e27
- security-advisories@githubhttps://github.com/mojolicious/mojo/security/advisories/GHSA-cf46-h6jw-mj3r
Frequently asked(4)
What is CVE-2026-77568?
CVE-2026-77568 is a rejected CVE ID: its record was withdrawn on September 21, 2026 and no longer describes a vulnerability. Reason given: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2026-15747. Reason: This candidate is a duplicate of CVE-2026-15747. Notes: All CVE users should reference CVE-2026-15747 instead of this candidate. Its record names CVE-2026-15747 as the replacement.
When was the CVE record for CVE-2026-77568 published?
The CVE record for CVE-2026-77568 was published on September 18, 2026. EchelonGraph's copy of the record carries a last-modified date of September 18, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-77568?
CVE-2026-77568 has a CVSS base score of 4.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-77568?
There is nothing to remediate under CVE-2026-77568: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability. Its record names CVE-2026-15747 as the replacement; act on that CVE instead.