CVE-2026-92803: LibreTranslate through 1.9.6 omits the access_check decorator from the download_file route, allowing unauthenticated access to translated files
Affects LibreTranslateSource GCVE Database
Not known to be exploited · CVSS 5.3 Medium.
Data as of 31 Oct 2026, 20:20 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 16 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHublibretranslate/LibreTranslatepkg:github/libretranslate/LibreTranslateOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, restrict access to the download_file route through other means such as network controls or reverse proxies to prevent unauthenticated access.
Description
LibreTranslate versions through 1.9.6 have a vulnerability where the download_file route lacks the access_check decorator. This omission allows unauthenticated users to access and download translated files, bypassing API key requirements and ban lists on protected instances. The vulnerability has a medium severity with a CVSS score of 5.3.
References
- nvd.nist.gov/vuln/detail/CVE-2026-92803 (opens in a new tab)
- github.com/LibreTranslate/LibreTranslate/issues/1012 (opens in a new tab)
- github.com/LibreTranslate/LibreTranslate (opens in a new tab)
- github.com/LibreTranslate/LibreTranslate/blob/v1.9.6/libretranslate/app.py (opens in a new tab)
- vulncheck.com/advisories/libretranslate-through-1.9.6-missing-access-check-on-the-download-file-route (opens in a new tab)