Weechat: [GHSA-vhv8-g2r9-cwcc: Non-Constant-Time Password Hash Comparison in Relay Authentication] (CVE-2026-53525)
A vulnerability in Weechat's relay authentication mechanism involves a non-constant-time password hash comparison. This timing discrepancy could potentially allow an attacker to infer password information. The issue affects multiple specific versions of Weechat. The CVSS 3.1 score is 7.4, indicating a medium severity vulnerability with network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, but high integrity and availability impacts.
AI Analysis
Technical Summary
CVE-2026-53525 describes a vulnerability in Weechat where the password hash comparison during relay authentication is not performed in constant time. This flaw can lead to timing side-channel attacks that may allow an attacker to compromise the integrity and availability of the affected system. The vulnerability affects numerous specific Weechat versions as listed. There is no information about known exploits in the wild or vendor-provided patches. The CVSS 3.1 vector indicates the attack requires network access with high complexity and no privileges or user interaction, impacting integrity and availability but not confidentiality.
Potential Impact
The vulnerability allows an attacker to exploit timing differences in password hash comparison, potentially leading to unauthorized actions that compromise the integrity and availability of the Weechat service. Confidentiality is not impacted. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fixes or patches are provided in the available data. Users should monitor vendor communications for updates and consider restricting network access to the relay authentication feature as a precaution.
Weechat: [GHSA-vhv8-g2r9-cwcc: Non-Constant-Time Password Hash Comparison in Relay Authentication] (CVE-2026-53525)
Description
A vulnerability in Weechat's relay authentication mechanism involves a non-constant-time password hash comparison. This timing discrepancy could potentially allow an attacker to infer password information. The issue affects multiple specific versions of Weechat. The CVSS 3.1 score is 7.4, indicating a medium severity vulnerability with network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, but high integrity and availability impacts.
CVSS v3.1
Score 7.4high
Affected software
pkg:deb/ubuntu/weechat?arch=source&distro=esm-apps/xenialpkg:deb/ubuntu/weechat?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/weechat?arch=source&distro=esm-apps/focalpkg:deb/ubuntu/weechat?arch=source&distro=jammypkg:deb/ubuntu/weechat?arch=source&distro=noblepkg:deb/ubuntu/weechat?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-53525 describes a vulnerability in Weechat where the password hash comparison during relay authentication is not performed in constant time. This flaw can lead to timing side-channel attacks that may allow an attacker to compromise the integrity and availability of the affected system. The vulnerability affects numerous specific Weechat versions as listed. There is no information about known exploits in the wild or vendor-provided patches. The CVSS 3.1 vector indicates the attack requires network access with high complexity and no privileges or user interaction, impacting integrity and availability but not confidentiality.
Potential Impact
The vulnerability allows an attacker to exploit timing differences in password hash comparison, potentially leading to unauthorized actions that compromise the integrity and availability of the Weechat service. Confidentiality is not impacted. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fixes or patches are provided in the available data. Users should monitor vendor communications for updates and consider restricting network access to the relay authentication feature as a precaution.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-53525
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 3.1
Threat ID: 6a8c4c58acd9273b499bedc1
Added to database: 08/24/2026, 13:51:20 UTC
Last enriched: 08/24/2026, 14:09:54 UTC
Last updated: 08/24/2026, 22:52:12 UTC
Views: 2
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