Answer in brief
CVE-2026-58273 records a High severity (CVSS 8.1) vulnerability in Rucio: Authorisation Bypass on REST API endpoint for signing URLs. The current sources do not mark it as known exploited. The current feed maps rucio/rucio (generic), rucio (pip), rucio (pip), rucio (pip) and additional mapped packages. 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 8.1. 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 rucio/rucio (generic), rucio (pip), rucio (pip), rucio (pip) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| rucio/ruciogeneric | >=1.16.1 <35.9.0 || >=36.0.0 <38.6.0 || >=39.0.0 <41.0.0rc1 | 35.9.0, 38.6.0, 41.0.0rc1 |
| ruciopip | >=1.16.1,<35.9.0 | 35.9.0 |
| ruciopip | >=36.0.0rc1,<38.6.0 | 38.6.0 |
| ruciopip | >=39.0.0rc1,<41.0.0rc1 | 41.0.0rc1 |
| ruciopypi | >=1.16.1 <35.9.0 | 35.9.0 |
| ruciopypi | >=36.0.0rc1 <38.6.0 | 38.6.0 |
| ruciopypi | >=39.0.0rc1 <41.0.0rc1 | 41.0.0rc1 |
Published upstream
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 28, 2026
Rucio is a scientific data management framework. From 1.16.1 until 35.9.0, 38.6.0, and 41.0.0rc1, the /credentials/signurl endpoint reads X-Rucio-Account instead of the account stored in request.environ['issuer'] by token authentication. Any authenticated low-privilege user can supply root as the header value and pass the root-only get_signed_url permission check. The server then returns a presigned read, write, or delete URL for an attacker-selected object using stored S3, GCS, or Swift credentials, and X-Rucio-VO can select another tenant in multi-VO deployments. This permits data disclosure, modification, deletion, and cross-tenant access on cloud-backed RSEs. This issue is fixed in versions 35.9.0, 38.6.0, and 41.0.0rc1.
Quoted source text, attributed separately from HOL analysis.