Gogs: Denial of Service in repository/wiki file listing web pages

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

Gogs is an open source self-hosted Git service. Prior to 0.14.3, a malicious user with rights to create a new file on a repository or wiki page can trigger a denial of service condition in which the pages containing the listing of files will return HTTP error 500 and render the web interface unusable for the repository or wiki. The issue is present in file internal/route/repo/wiki.go and internal/route/repo/view.go where the pages try to recover commit information. If errors are returned while recovering commit information, the page will return a 500 error and stop rendering, resulting in a denial of service. This vulnerability is fixed in 0.14.3.

Source published

24 Jun 2026 20:03:07 UTC

Source modified

25 Jun 2026 20:05:56 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

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CVSS 3.1 · 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Gogs is an open source self-hosted Git service. Prior to 0.14.3, a malicious user with rights to create a new file on a repository or wiki page can trigger a denial of service condition in which the pages containing the listing of files will return HTTP error 500 and render the web interface unusable for the repository or wiki. The issue is present in file internal/route/repo/wiki.go and internal/route/repo/view.go where the pages try to recover commit information. If errors are returned while recovering commit information, the page will return a 500 error and stop rendering, resulting in a denial of service. This vulnerability is fixed in 0.14.3.

Source published

Jun 24, 2026, 8:03:07 PM (timezone not stated)

Source modified

Jun 25, 2026, 8:05:56 PM (timezone not stated)

Observed here

9 Nov 2026 04:07:32 UTC

Source terms

ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Gogs is an open source self-hosted Git service. Prior to 0.14.3, a malicious user with rights to create a new file on a repository or wiki page can trigger a denial of service condition in which the pages containing the listing of files will return HTTP error 500 and render the web interface unusable for the repository or wiki. The issue is present in file internal/route/repo/wiki.go and internal/route/repo/view.go where the pages try to recover commit information. If errors are returned while recovering commit information, the page will return a 500 error and stop rendering, resulting in a denial of service. This vulnerability is fixed in 0.14.3.

Source published

24 Jun 2026 21:16:52 UTC

Source modified

12 Oct 2026 21:10:00 UTC

Observed here

25 Oct 2026 03:17:29 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

### Summary A malicious user with rights to create a new file on a repository or wiki page can trigger a denial of service condition in which the pages containing the listing of files will return HTTP error 500 and render the web interface unusable for the repository or wiki. ### Details The issue is present in file `internal/route/repo/wiki.go` and `internal/route/repo/view.go` where the pages try to recover commit information. If errors are returned while recovering commit information, the page will return a 500 error and stop rendering, resulting in a denial of service. In `view.go` the issue occurs at [line 56](https://github.com/gogs/gogs/blob/89f0f86c7e1a3be7f48d99e27818a79d17357558/internal/route/repo/view.go#L56) while a slightly different issue occurs in `wiki.go` at [line 174](https://github.com/gogs/gogs/blob/89f0f86c7e1a3be7f48d99e27818a79d17357558/internal/route/repo/wiki.go#L174) where `commits[0]` is dereferenced without checking if it contains value. It is possible to trigger issues in assigning the correct value to variable `commits` by using a specific string as part of the page title. The issue is linked to the fact that file names can contain special characters such as `*`, `?`, `[`, `]`, etc. that will be interpreted as git's pathspec instead of a simple string. So crafting a name containing an incomplete pathspec sequence will trigger this error. ### PoC As a proof of concept consider the file name `"[]` and how it affects repository and wiki pages. In the following images it is shown how pages are created, the error shown in the web page right after creation and the error as logged in the console. <img width="835" height="503" alt="repo_creation" src="https://github.com/user-attachments/assets/cdee9625-33d9-42d3-a5fa-264fba4923ed" /> **Figure 1: Creation of malicious file in repository** <img width="832" height="692" alt="repo_error_web" src="https://github.com/user-attachments/assets/53c57366-8f45-4a0f-a2ac-86f4a08467cc" /> **Figure 2: Malicious file in repository causes error 500** <img width="934" height="56" alt="repo_error_console" src="https://github.com/user-attachments/assets/26427fc3-bead-4e41-a484-e2d53289a2da" /> **Figure 3: Console error caused by malicious file in repository** <img width="835" height="503" alt="wiki_creation" src="https://github.com/user-attachments/assets/7a5c9836-64e3-4824-b6e5-9f9a80e7f18a" /> **Figure 4: Creation of malicious file in wiki** <img width="1001" height="463" alt="wiki_error_web" src="https://github.com/user-attachments/assets/33c5a907-b81c-4157-bd37-33341412172a" /> **Figure 5: Malicious file in wiki causes error 500** <img width="1018" height="537" alt="wiki_error_console" src="https://github.com/user-attachments/assets/9b0ab551-5720-4715-a2ac-f7310534f025" /> **Figure 6: Console error caused by malicious file in wiki** ### Impact The repository and wiki pages will not render when files named with the payload are present in the repository or in the wiki. This condition will be present as long as the malicious file is present in the repository or wiki. The issue will not cause a DoS condition when using the server via CLI.

Source published

22 Jun 2026 16:58:31 UTC

Source modified

21 Jul 2026 13:30:31 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Publisher rating · MODERATE

Gogs has a Denial of Service in repository/wiki file listing web pages in gogs.io/gogs. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: gogs.io/gogs before v0.14.3.

Source published

25 Jun 2026 18:26:48 UTC

Source modified

25 Jun 2026 18:45:19 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.