Distribution advisory
This page covers CVE-2026-8643 as tracked by BellSoft, for the package py3-pip. The fix is available in version 26.1.1-r1; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Attack vector: Local — a local account, shell or session on the host is needed.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: Low — an ordinary user account is enough.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: None.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: None.
Weakness class
BELL-CVE-2026-8643 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.
Affected software
BELL-CVE-2026-8643 is recorded against 1 package.
- py3-pip (from 22.3.1-r2 up to 26.1.1-r1)
Timeline and source
Published on 28 May 2026 and last revised on 6 June 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
py3-pip 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-22: Path Traversal) in other software:
