CVE catalog
CVE-2021-39880
ruby-apollo-upload-server: CVE-2021-39880
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.07% · Oct 25, 2026
A Denial Of Service vulnerability in the apollo_upload_server Ruby gem in GitLab CE/EE all versions starting from 11.9 before 14.0.9, all versions starting from 14.1 before 14.1.4, and all versions starting from 14.2 before 14.2.2 allows an attacker to deny access to all users via specially crafted requests to the apollo_upload_server middleware.
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 | ruby-apollo-upload-server | sid | 2.1.8-1 | fixed |
| Debian | ruby-apollo-upload-server | forky | 2.1.8-1 | fixed |
| Debian | ruby-apollo-upload-server | trixie | 2.1.6-1 | fixed |
| Debian | ruby-apollo-upload-server | bookworm | 2.1.0-1 | fixed |
| Ubuntu | gitlab | 16.04 | 8.4.3+dfsg-9 | vulnerable |
| Ubuntu | gitlab | 16.04 | 8.4.3+dfsg-12 | vulnerable |
| Ubuntu | gitlab | 16.04 | 8.5.8+dfsg-5 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby-apollo-upload-server | source | sid | 2.1.0-1 | not yet assigned | Not reported | Not reported |
| Debian | ruby-apollo-upload-server | source | forky | 2.1.0-1 | not yet assigned | Not reported | Not reported |
| Debian | ruby-apollo-upload-server | source | trixie | 2.1.0-1 | not yet assigned | Not reported | Not reported |
| Debian | ruby-apollo-upload-server | source | bookworm | 2.1.0-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ruby-apollo-upload-server]Fixed
Details (2)
2.1.0-1· all · bookwormFixed · Fixed:
2.1.0-1dsa · ruby-apollo-upload-server · debian · bookworm; dsa · ruby-apollo-upload-server · debian · 12
2.1.0-1· all · bookwormFixed · Fixed:
2.1.0-1dsa · ruby-apollo-upload-server · debian · bookworm; dsa · ruby-apollo-upload-server · debian · 12
[Debian 13 (Trixie)]
- [ruby-apollo-upload-server]Fixed
Details (2)
2.1.6-1· all · trixieFixed · Fixed:
2.1.0-1dsa · ruby-apollo-upload-server · debian · 13
2.1.6-1· all · trixieFixed · Fixed:
2.1.0-1dsa · ruby-apollo-upload-server · debian · 13
Observed: