CVE catalog
CVE-2026-26477
An issue in Dokuwiki v.2025-05-14b "Librarian" [56.2] allows a remote attacker to cause a denial of service via the media_upload_xhr() function in the media.php file
- 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
- 0.45% · Oct 25, 2026
An issue in Dokuwiki v.2025-05-14b "Librarian" [56.2] allows a remote attacker to cause a denial of service via the media_upload_xhr() function in the media.php file
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 | dokuwiki | sid | 2026-07-14.c+dfsg-3 | fixed |
| Debian | dokuwiki | forky | 2026-07-14.c+dfsg-3 | fixed |
| Debian | dokuwiki | trixie | 2024-02-06b+dfsg-9 | vulnerable |
| Debian | dokuwiki | bookworm | 0.0.20220731.a-2 | vulnerable |
| Cpe | dokuwiki | Not reported | Not reported | vulnerable |
| Cpe | dokuwiki | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | dokuwiki | source | sid | 2025-05-14.b+dfsg-6 | unimportant | Not reported | Not reported |
| Debian | dokuwiki | source | forky | 2025-05-14.b+dfsg-6 | unimportant | Not reported | Not reported |
| Debian | dokuwiki | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | dokuwiki | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [dokuwiki]Affected
Details (2)
0.0.20220731.a-2· all · bookwormAffected
nvd · dokuwiki · debian · bookworm; nvd · dokuwiki · debian · 12
0.0.20220731.a-2· all · bookwormAffected
nvd · dokuwiki · debian · bookworm; nvd · dokuwiki · debian · 12
[Debian 13 (Trixie)]
- [dokuwiki]Affected
Details (2)
2024-02-06b+dfsg-9· all · trixieAffected
nvd · dokuwiki · debian · 13
2024-02-06b+dfsg-9· all · trixieAffected
nvd · dokuwiki · debian · 13
- [dokuwiki-farm]Affected
Source package: [dokuwiki]
Details (2)
2024-02-06b+dfsg-9· all · trixieAffected
nvd · dokuwiki · debian · 13
2024-02-06b+dfsg-9· all · trixieAffected
nvd · dokuwiki · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-26477]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-26477]
- [https://security-tracker.debian.org/tracker/CVE-2026-26477]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26477.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]