Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application by providing an excessively long username string during account creation. Attackers can input a buffer of 1000 characters in the username field and trigger a crash when joining a chat, causing the application to become unavailable.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Sat, 21 Mar 2026 13:00:00 +0000

Type Values Removed Values Added
Description Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application by providing an excessively long username string during account creation. Attackers can input a buffer of 1000 characters in the username field and trigger a crash when joining a chat, causing the application to become unavailable.
Title Pidgin 2.13.0 Denial of Service via Malformed Username
First Time appeared Pidgin
Pidgin pidgin
Weaknesses CWE-807
CPEs cpe:2.3:a:pidgin:pidgin:2.14.0:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.10:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.1:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.2:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.3:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.4:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.5:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.6:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.7:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.8:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.14.9:*:*:*:*:*:*:*
Vendors & Products Pidgin
Pidgin pidgin
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-21T12:46:48.415Z

Reserved: 2026-03-21T12:23:17.461Z

Link: CVE-2019-25544

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-21T13:16:15.270

Modified: 2026-03-21T13:16:15.270

Link: CVE-2019-25544

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses