Bug 2449948 (CVE-2019-25544) - CVE-2019-25544 Pidgin: Pidgin: Denial of Service via excessively long username
Summary: CVE-2019-25544 Pidgin: Pidgin: Denial of Service via excessively long username
Keywords:
Status: NEW
Alias: CVE-2019-25544
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2450324 2450325
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-21 13:01 UTC by OSIDB Bzimport
Modified: 2026-03-23 13:55 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2026-03-21 13:01:43 UTC 
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.
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