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CVE-2026-23878

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Date: January 19, 2026

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.

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-23878
https://github.com/kohler/hotcrp/security/advisories/GHSA-vh3x-xwj4-jvqx
https://github.com/kohler/hotcrp/commit/ceacd5f1476458792c44c6a993670f02c984b4a0
https://github.com/kohler/hotcrp/commit/aa20ef288828b04550950cf67c831af8a525f508
https://www.mend.io/vulnerability-database/CVE-2026-23878

Severity Score

Weakness Type (CWE)

Insertion of Sensitive Information Into Sent Data

CWE-201

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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