CVE-2026-103398: Liquid-co OpenSave · External Control of File Name or Path
Affects Liquid-co OpenSaveSource CVE Database V5
Not known to be exploited · CVSS 8.6 High.
Data as of 14 Nov 2026, 20:43 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 30 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 14 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Liquid-coOpenSave | Affected
| Fixed in– |
GitHubOpenSavepkg:github/OpenSaveOther 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 an official fix is available, restrict access to the manifest and sync routes to trusted peers only and monitor for suspicious activity involving file path manipulations.
Description
CVE-2026-103398 is a vulnerability in Liquid-co's OpenSave product up to version 2.4.0. It involves improper validation of save paths supplied by paired peers in the manifest request handler, allowing attackers to specify arbitrary directories outside the configured save locations. This can lead to unauthorized reading and writing of files through manifest and sync routes. The vulnerability has a high severity with a CVSS score of 8.6.
References
- gist.github.com/mansurmavlankulov/2ca66f95965fb9d4aab353bcf2434cdb (opens in a new tab)
- github.com/Liquid-co/OpenSave/blob/v2.4.0/internal/p2p/routes.go (opens in a new tab)
- github.com/Liquid-co/OpenSave/blob/v2.4.0/internal/delta/rootguard.go (opens in a new tab)
- github.com/Liquid-co/OpenSave (opens in a new tab)
- vulncheck.com/advisories/opensave-through-2.4.0-arbitrary-file-read-and-write-via-peer-controlled-save-path (opens in a new tab)