CVE-2026-112936: filelock · ReadWriteLock follows a symlink at the lock path into SQLite
Affects shodanSource GCVE Database
Not known to be exploited · CVSS 6.1 Medium : upgrade to 1.31.0_11 when convenient.
Data as of 30 Oct 2026, 05:17 UTC
- Patch
- Available – fixed in 1.31.0_11
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 20 Oct 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 29 Oct 2026.
What to do
Upgrade shodan to 1.31.0_11.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Homebrewshodanpkg:brew/shodanOther 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
A patch is available in version 1.31.0_11 that fixes this vulnerability. Users should upgrade to this version or later. As a workaround, keep ReadWriteLock paths in directories writable only by trusted users to prevent attackers from planting malicious symlinks.
Description
The ReadWriteLock and AsyncReadWriteLock classes in the affected software resolve lock file paths by following symlinks, which allows a local attacker with write access to the lock directory to manipulate the locking mechanism. This can cause the victim process to create or write files at unintended locations, break mutual exclusion between processes, or cause database locking conflicts. The issue affects versions from 1.31.0_9 up to but not including 1.31.0_11 and has been fixed in version 1.31.0_11.
References
- github.com/tox-dev/filelock/security/advisories/GHSA-j8f7-rjxc-mr56 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-112936 (opens in a new tab)
- github.com/tox-dev/filelock/commit/4d45e83caf7e31f9a12fb44526bdc07f70114f04 (opens in a new tab)
- github.com/tox-dev/filelock (opens in a new tab)
- github.com/tox-dev/filelock/releases/tag/4.0.9 (opens in a new tab)