CVE catalog
CVE-2026-43507
An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by XML parsing resource amplification from unauthent
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.35% · Oct 25, 2026
An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by XML parsing resource amplification from unauthenticated connections.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | prosody | sid | 13.0.7-1 | fixed |
| Debian | prosody | forky | 13.0.7-1 | fixed |
| Debian | prosody | trixie | 13.0.1-1+deb131u | fixed |
| Debian | prosody | trixie-security | 13.0.1-1+deb131u | fixed |
| Debian | prosody | bookworm | 0.12.3-1+deb12u1 | fixed |
| Debian | prosody | bookworm-security | 0.12.3-1+deb12u1 | fixed |
| Cpe | prosody | Not reported | 0.12.6 | fixed |
| Cpe | prosody | Not reported | 13.0.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | prosody | source | sid | 13.0.5-1 | not yet assigned | Not reported | Not reported |
| Debian | prosody | source | forky | 13.0.5-1 | not yet assigned | Not reported | Not reported |
| Debian | prosody | source | trixie | 13.0.1-1+deb131u | not yet assigned | Not reported | Not reported |
| Debian | prosody | source | bookworm | 0.12.3-1+deb12u1 | not yet assigned | Not reported | Not reported |
| Cpe | prosody | cpe | Not reported | 0.12.6 | Not reported | Not reported | Not reported |
| Cpe | prosody | cpe | Not reported | 13.0.5 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [prosody]Fixed
Details (6)
0.12.3-1+deb12u1· amd64 · bookwormFixed · Fixed:
0.12.3-1+deb12u1nvd · prosody · debian · bookworm; nvd · prosody · debian · 12
0.12.3-1+deb12u1· arm64 · bookwormFixed · Fixed:
0.12.3-1+deb12u1nvd · prosody · debian · bookworm; nvd · prosody · debian · 12
13.0.1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
0.12.3-1+deb12u1nvd · prosody · debian · bookworm; nvd · prosody · debian · 12
13.0.1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
0.12.3-1+deb12u1nvd · prosody · debian · bookworm; nvd · prosody · debian · 12
0.12.3-1+deb12u1· amd64 · bookworm-securityFixed · Fixed:
0.12.3-1+deb12u1nvd · prosody · debian · bookworm; nvd · prosody · debian · 12
0.12.3-1+deb12u1· arm64 · bookworm-securityFixed · Fixed:
0.12.3-1+deb12u1nvd · prosody · debian · bookworm; nvd · prosody · debian · 12
[Debian 13 (Trixie)]
- [prosody]Fixed
Details (6)
13.0.1-1+deb131u· amd64 · trixieFixed · Fixed:
13.0.1-1+deb131unvd · prosody · debian · 13
13.0.1-1+deb131u· arm64 · trixieFixed · Fixed:
13.0.1-1+deb131unvd · prosody · debian · 13
13.0.6-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
13.0.1-1+deb131unvd · prosody · debian · 13
13.0.6-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
13.0.1-1+deb131unvd · prosody · debian · 13
13.0.1-1+deb131u· amd64 · trixie-securityFixed · Fixed:
13.0.1-1+deb131unvd · prosody · debian · 13
13.0.1-1+deb131u· arm64 · trixie-securityFixed · Fixed:
13.0.1-1+deb131unvd · prosody · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-43507]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-43507]
- [https://security-tracker.debian.org/tracker/CVE-2026-43507]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43507.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]