CVE catalog
CVE-2026-77506
Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.
- Severity
- Medium · CVSS 4.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.24% · Oct 25, 2026
Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.
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 | znuny | sid | 6.5.26-1 | fixed |
| Debian | znuny | forky | 6.5.26-1 | fixed |
| Debian | znuny | trixie | 6.5.15-2 | vulnerable |
| Debian | znuny | bookworm | 6.5.1-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | znuny | source | sid | 6.5.22-1 | not yet assigned | Not reported | Not reported |
| Debian | znuny | source | forky | 6.5.22-1 | not yet assigned | Not reported | Not reported |
| Debian | znuny | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | znuny | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[trixie] znuny: Non-free not supported [bookworm] znuny: Non-free not supported
OpenFactory catalog packages
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-77506]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-77506]
- [https://security-tracker.debian.org/tracker/CVE-2026-77506]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2084.json]
- [https://www.znuny.org/en/advisories/zsa-2026-12]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]