What’s Vulnerable › Vulnerabilities

CVE-2026-23878: HotCRP vulnerable to exposure of submitted documents

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-19 · updated 2026-06-17
• Weakness: CWE-201

Description

HotCRP is conference review software. Starting in commit aa20ef288828b04550950cf67c831af8a525f508 and prior to commit ceacd5f1476458792c44c6a993670f02c984b4a0, authors with at least one submission on a HotCRP site could use the document API to download any documents (PDFs, attachments) associated with any submission. The problem was patched in commit ceacd5f1476458792c44c6a993670f02c984b4a0.

Affected products

• kohler hotcrp: 3.1

References

• https://github.com/kohler/hotcrp/commit/aa20ef288828b04550950cf67c831af8a525f508
• https://github.com/kohler/hotcrp/commit/ceacd5f1476458792c44c6a993670f02c984b4a0
• https://github.com/kohler/hotcrp/security/advisories/GHSA-vh3x-xwj4-jvqx

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