Answer in brief
CVE-2026-13346 records a Medium severity (CVSS 6.5) vulnerability in pip would incorrectly handle doubly-encoded package URLs from indexes. The current sources do not mark it as known exploited. The current feed maps pip (pip), pip (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps pip (pip), pip (pypi). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:pypa:pip:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| pippip | <26.2.0 | 26.2.0 |
| pippypi | >=0 <26.2 | 26.2 |
Published upstream
Jul 29, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Sep 1, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Aug 21, 2026
pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels. This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.
Quoted source text, attributed separately from HOL analysis.