Is there a public exploit for CVE-2026-55493?

No public exploit for CVE-2026-55493 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-55493?

CVE-2026-55493 scores CVSS 6.5 (v3.1), rated medium.

6.5 Medium

HotCRP is conference review software.

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.

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 30 October 2026
Last updated: 30 October 2026
Affected: kohler
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

At the source

EUVD (ENISA)

References

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