CVE-2026-55493

HotCRP is conference review software. Starting with 2.101, the `cmt:` search term checks whether a comment is visible to the searching user but fails to check whether the commenter's identity should be visible. A `cmt:USER` search can therefore match a paper with a visible comment authored by USER even when the comment is supposed to be anonymous. An authenticated user with access to the search can infer the author of an anonymous comment, compromising reviewer anonymity. Comments that the user cannot see remain excluded from search results. The advisory prose identifies 3.3 as fixed, its affected-version metadata excludes 3.3, and the verified repository tag 3.3 already contains the identity-check fix; however, its patched-version metadata instead lists 3.3.1. This fixed-version source conflict remains unresolved.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/kohler/hotcrp/commit/c4b008e756650db3063e8dd8300127936aae9ec1
https://github.com/kohler/hotcrp/releases/tag/v3.3
https://github.com/kohler/hotcrp/security/advisories/GHSA-x3g6-4c5h-7p29

Configurations

No configuration.

History

30 Oct 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-30 20:17

Updated : 2026-10-30 20:17

NVD link : CVE-2026-55493

Mitre link : CVE-2026-55493

CVE.ORG link : CVE-2026-55493

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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