Distribution advisory
This page covers CVE-2025-8869 as tracked by BellSoft, for the package python3. The fix is available in version 3.11.4-r0; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must actively cooperate. Rated impact: confidentiality none, integrity high, availability none. (rating taken from the base CVE record.)
CVSS metrics in full
The score comes from this vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Attack requirements: Present — the target has to be in a particular state for the attack to work.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: Active — the victim has to cooperate with the attack.
- Confidentiality impact: None.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: None.
Weakness class
BELL-CVE-2025-8869 is classified as CWE-59: Link Following. The software follows symbolic or hard links without verifying their target, so a planted link can redirect an operation to a sensitive file.
Affected software
BELL-CVE-2025-8869 is recorded against 1 package.
- python3 (from 3.11.3-r0 up to 3.11.4-r0)
Timeline and source
Published on 25 September 2025 and last revised on 26 January 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
docs.bell-sw.com (Advisory)
Other advisories for this package
python3 has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-59: Link Following) in other software:
