CVE-2026-43506: Prosody · Memory Leak
Source GCVE Database
Not known to be exploited · CVSS 5.3 Medium · fixed in 13.0.5 : update Prosody when convenient.
Data as of 27 Oct 2026, 00:42 UTC
- Affects
- Prosody before 0.12.6
- Patch
- Available – fixed in 13.0.5, 0.12.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
A fix is available in Prosody version 0.12.6 and in versions 13.0.5 and later. Users should upgrade to these fixed versions to remediate the vulnerability. No additional mitigation steps are indicated.
Description
A denial of service vulnerability exists in Prosody versions before 0.12.6 and from 1.0.0 through 13.0.0 before 13.0.5. The issue is caused by memory leaks triggered by unauthenticated connections, leading to memory exhaustion.