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CVE-2026-58273

Rucio: Authorisation Bypass on REST API endpoint for signing URLs

publishedCWE-639

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.

Technical severity8.1 highCVSS 3.1 · CNA: GitHub_M
Published2026-11-05Source updated 2026-11-05
Collected2026-11-052 attributed sources

Fixes and workarounds

Fix

rucio (PyPI): OSV reports a fixed version 35.9.0. Check the advisory for supported release branches.

Source: OSV GHSA-5j9r-fx4x-rpvg

Fix

rucio (PyPI): OSV reports a fixed version 38.6.0. Check the advisory for supported release branches.

Source: OSV GHSA-5j9r-fx4x-rpvg

Fix

rucio (PyPI): OSV reports a fixed version 41.0.0rc1. Check the advisory for supported release branches.

Source: OSV GHSA-5j9r-fx4x-rpvg

Affected products and versions

ProductVersionsAuthority
rucio
rucio 		>= 1.16.1, < 35.9.0 (affected)
>= 36.0.0, < 38.6.0 (affected)
>= 39.0.0, < 41.0.0rc1 (affected) 		CNA: GitHub_M
rucio

rucio
PyPI 		1.16.1 (affected, PyPI)
1.16.2 (affected, PyPI)
1.16.3 (affected, PyPI)
1.17.0 (affected, PyPI)
1.17.1 (affected, PyPI)
1.17.2 (affected, PyPI)
1.17.2.post1 (affected, PyPI)
1.17.5 (affected, PyPI)
1.17.6 (affected, PyPI)
1.17.6.post1 (affected, PyPI)
1.17.6.post2 (affected, PyPI)
1.17.7 (affected, PyPI)
1.17.8 (affected, PyPI)
1.17.8.post1 (affected, PyPI)
1.17.8.post2 (affected, PyPI)
1.18.0 (affected, PyPI)
1.18.1 (affected, PyPI)
1.18.3 (affected, PyPI)
1.18.4 (affected, PyPI)
1.18.5 (affected, PyPI)
1.18.5.post1 (affected, PyPI)
1.18.6 (affected, PyPI)
1.18.6.post1 (affected, PyPI)
1.18.7 (affected, PyPI)
1.18.8 (affected, PyPI)
1.18.8.post1 (affected, PyPI)
1.18.9 (affected, PyPI)
1.19.0.post2 (affected, PyPI)
1.19.1 (affected, PyPI)
1.19.3 (affected, PyPI)
1.19.4 (affected, PyPI)
1.19.4.post1 (affected, PyPI)
1.19.4.post2 (affected, PyPI)
1.19.5 (affected, PyPI)
1.19.6 (affected, PyPI)
1.19.7 (affected, PyPI)
1.19.7.post1 (affected, PyPI)
1.19.8 (affected, PyPI)
1.20.0 (affected, PyPI)
1.20.0rc1 (affected, PyPI)
1.20.1 (affected, PyPI)
1.20.1.post1 (affected, PyPI)
1.20.10 (affected, PyPI)
1.20.11 (affected, PyPI)
1.20.12 (affected, PyPI)
1.20.13 (affected, PyPI)
1.20.14 (affected, PyPI)
1.20.15 (affected, PyPI)
1.20.16 (affected, PyPI)
1.20.2 (affected, PyPI)
1.20.3 (affected, PyPI)
1.20.3rc1 (affected, PyPI)
1.20.3rc2 (affected, PyPI)
1.20.4 (affected, PyPI)
1.20.4.post1 (affected, PyPI)
1.20.4.post2 (affected, PyPI)
1.20.4rc1 (affected, PyPI)
1.20.4rc2 (affected, PyPI)
1.20.4rc3 (affected, PyPI)
1.20.5 (affected, PyPI)
1.20.6 (affected, PyPI)
1.20.7 (affected, PyPI)
1.20.8 (affected, PyPI)
1.20.9 (affected, PyPI)
1.21.0 (affected, PyPI)
1.21.0.dev1 (affected, PyPI)
1.21.0.post1 (affected, PyPI)
1.21.0.post2 (affected, PyPI)
1.21.0rc1 (affected, PyPI)
1.21.0rc2 (affected, PyPI)
1.21.0rc3 (affected, PyPI)
1.21.1 (affected, PyPI)
1.21.10 (affected, PyPI)
1.21.10.post1 (affected, PyPI)
1.21.12 (affected, PyPI)
1.21.2 (affected, PyPI)
1.21.3 (affected, PyPI)
1.21.4 (affected, PyPI)
1.21.5 (affected, PyPI)
1.21.6 (affected, PyPI)
1.21.7 (affected, PyPI)
1.21.8 (affected, PyPI)
1.22.0 (affected, PyPI)
1.22.0.dev1 (affected, PyPI)
1.22.0.dev2 (affected, PyPI)
1.22.0.dev3 (affected, PyPI)
1.22.0rc1 (affected, PyPI)
1.22.0rc2 (affected, PyPI)
1.22.1 (affected, PyPI)
1.22.2 (affected, PyPI)
1.22.3 (affected, PyPI)
1.22.3.post1 (affected, PyPI)
1.22.4 (affected, PyPI)
1.22.4.dev1 (affected, PyPI)
1.22.6 (affected, PyPI)
1.22.6.post1 (affected, PyPI)
1.22.7 (affected, PyPI)
1.22.8 (affected, PyPI)
1.22.8.post1 (affected, PyPI)
1.23.0 (affected, PyPI)
1.23.0rc1 (affected, PyPI)
1.23.0rc2 (affected, PyPI)
1.23.1 (affected, PyPI)
1.23.10 (affected, PyPI)
1.23.11 (affected, PyPI)
1.23.11.post1 (affected, PyPI)
1.23.11.post2 (affected, PyPI)
1.23.11.post3 (affected, PyPI)
1.23.11.post4 (affected, PyPI)
1.23.12 (affected, PyPI)
1.23.13 (affected, PyPI)
1.23.14 (affected, PyPI)
1.23.15 (affected, PyPI)
1.23.17 (affected, PyPI)
1.23.18 (affected, PyPI)
1.23.19 (affected, PyPI)
1.23.2 (affected, PyPI)
1.23.2.post1 (affected, PyPI)
1.23.2.post2 (affected, PyPI)
1.23.20 (affected, PyPI)
1.23.4 (affected, PyPI)
1.23.5 (affected, PyPI)
1.23.5.post1 (affected, PyPI)
1.23.6 (affected, PyPI)
1.23.6.post1 (affected, PyPI)
1.23.7 (affected, PyPI)
1.23.7.post1 (affected, PyPI)
1.23.8 (affected, PyPI)
1.23.9 (affected, PyPI)
1.23.9.post1 (affected, PyPI)
1.23.9.post2 (affected, PyPI)
1.23.9.post3 (affected, PyPI)
1.23.9.post4 (affected, PyPI)
1.24.0 (affected, PyPI)
1.24.0rc1 (affected, PyPI)
1.24.1 (affected, PyPI)
1.24.1.post1 (affected, PyPI)
1.24.1.post2 (affected, PyPI)
1.24.1.post3 (affected, PyPI)
1.24.1.post4 (affected, PyPI)
1.24.2 (affected, PyPI)
1.24.2.post1 (affected, PyPI)
1.24.3 (affected, PyPI)
1.24.3.post1 (affected, PyPI)
1.24.4 (affected, PyPI)
1.24.5 (affected, PyPI)
1.24.5.post1 (affected, PyPI)
1.25.0 (affected, PyPI)
1.25.0rc1 (affected, PyPI)
1.25.0rc2 (affected, PyPI)
1.25.1 (affected, PyPI)
1.25.1.post1 (affected, PyPI)
1.25.2 (affected, PyPI)
1.25.3 (affected, PyPI)
1.25.3.post1 (affected, PyPI)
1.25.3.post2 (affected, PyPI)
1.25.4 (affected, PyPI)
1.25.4.post1 (affected, PyPI)
1.25.5 (affected, PyPI)
1.25.6 (affected, PyPI)
1.25.7 (affected, PyPI)
1.26.0 (affected, PyPI)
1.26.0rc1 (affected, PyPI)
1.26.0rc2 (affected, PyPI)
1.26.1 (affected, PyPI)
1.26.1.post1 (affected, PyPI)
1.26.10 (affected, PyPI)
1.26.11 (affected, PyPI)
1.26.12 (affected, PyPI)
1.26.13 (affected, PyPI)
1.26.14 (affected, PyPI)
1.26.15 (affected, PyPI)
1.26.16 (affected, PyPI)
1.26.17 (affected, PyPI)
1.26.18 (affected, PyPI)
1.26.2 (affected, PyPI)
1.26.4 (affected, PyPI)
1.26.5 (affected, PyPI)
1.26.6 (affected, PyPI)
1.26.7 (affected, PyPI)
1.26.7.post1 (affected, PyPI)
1.26.8 (affected, PyPI)
1.26.8.post1 (affected, PyPI)
1.26.9 (affected, PyPI)
1.27.0 (affected, PyPI)
1.27.0.post1 (affected, PyPI)
1.27.0rc1 (affected, PyPI)
1.27.0rc2 (affected, PyPI)
1.27.1 (affected, PyPI)
1.27.10 (affected, PyPI)
1.27.11 (affected, PyPI)
1.27.12 (affected, PyPI)
1.27.2 (affected, PyPI)
1.27.3 (affected, PyPI)
1.27.4 (affected, PyPI)
1.27.4.post1 (affected, PyPI)
1.27.5 (affected, PyPI)
1.27.7 (affected, PyPI)
1.27.9 (affected, PyPI)
1.28.0 (affected, PyPI)
1.28.0rc1 (affected, PyPI)
1.28.0rc2 (affected, PyPI)
1.28.1 (affected, PyPI)
1.28.2 (affected, PyPI)
1.28.3 (affected, PyPI)
1.28.4 (affected, PyPI)
1.28.5 (affected, PyPI)
1.28.6 (affected, PyPI)
1.28.7 (affected, PyPI)
1.29.0 (affected, PyPI)
1.29.0rc1 (affected, PyPI)
1.29.0rc2 (affected, PyPI)
1.29.1 (affected, PyPI)
1.29.10 (affected, PyPI)
1.29.11 (affected, PyPI)
1.29.12 (affected, PyPI)
1.29.13 (affected, PyPI)
1.29.14 (affected, PyPI)
1.29.15 (affected, PyPI)
1.29.16 (affected, PyPI)
1.29.17 (affected, PyPI)
1.29.18 (affected, PyPI)
1.29.19 (affected, PyPI)
1.29.2 (affected, PyPI)
1.29.2.post1 (affected, PyPI)
1.29.2.post2 (affected, PyPI)
1.29.3 (affected, PyPI)
1.29.3.post1 (affected, PyPI)
1.29.4 (affected, PyPI)
1.29.5 (affected, PyPI)
1.29.6 (affected, PyPI)
1.29.7 (affected, PyPI)
1.29.7.post1 (affected, PyPI)
1.29.8 (affected, PyPI)
1.29.9 (affected, PyPI)
1.30.0 (affected, PyPI)
1.30.0rc1 (affected, PyPI)
1.30.0rc2 (affected, PyPI)
1.30.0rc3 (affected, PyPI)
1.30.1 (affected, PyPI)
1.30.2 (affected, PyPI)
1.30.3 (affected, PyPI)
1.30.4 (affected, PyPI)
1.30.5 (affected, PyPI)
1.30.6 (affected, PyPI)
1.30.7 (affected, PyPI)
1.30.8 (affected, PyPI)
1.31.0 (affected, PyPI)
1.31.0rc1 (affected, PyPI)
1.31.0rc2 (affected, PyPI)
1.31.0rc3 (affected, PyPI)
1.31.1 (affected, PyPI)
1.31.2 (affected, PyPI)
1.31.3 (affected, PyPI)
1.31.4 (affected, PyPI)
1.31.5 (affected, PyPI)
1.31.6 (affected, PyPI)
1.31.7 (affected, PyPI)
32.0.0 (affected, PyPI)
32.0.0rc1 (affected, PyPI)
32.0.0rc2 (affected, PyPI)
32.1.0 (affected, PyPI)
32.2.0 (affected, PyPI)
32.3.0 (affected, PyPI)
32.3.1 (affected, PyPI)
32.4.0 (affected, PyPI)
32.5.0 (affected, PyPI)
32.5.0.post1 (affected, PyPI)
32.5.1 (affected, PyPI)
32.6.0 (affected, PyPI)
32.6.0.post1 (affected, PyPI)
32.7.0 (affected, PyPI)
32.8.0 (affected, PyPI)
32.8.1 (affected, PyPI)
32.8.2 (affected, PyPI)
32.8.3 (affected, PyPI)
32.8.4 (affected, PyPI)
32.8.5 (affected, PyPI)
32.8.6 (affected, PyPI)
33.0.0 (affected, PyPI)
33.0.0rc1 (affected, PyPI)
33.0.0rc2 (affected, PyPI)
33.0.0rc3 (affected, PyPI)
33.1.0 (affected, PyPI)
33.2.0 (affected, PyPI)
33.2.1 (affected, PyPI)
33.3.0 (affected, PyPI)
33.4.0 (affected, PyPI)
33.4.0.post1 (affected, PyPI)
33.5.0 (affected, PyPI)
33.6.0 (affected, PyPI)
33.6.1 (affected, PyPI)
34.0.0 (affected, PyPI)
34.0.0rc1 (affected, PyPI)
34.0.0rc2 (affected, PyPI)
34.1.0 (affected, PyPI)
34.2.0 (affected, PyPI)
34.3.0 (affected, PyPI)
34.4.0 (affected, PyPI)
34.4.1 (affected, PyPI)
34.4.2 (affected, PyPI)
34.4.3 (affected, PyPI)
34.5.0 (affected, PyPI)
34.6.0 (affected, PyPI)
35.0.0 (affected, PyPI)
35.0.0rc1 (affected, PyPI)
35.0.0rc2 (affected, PyPI)
35.0.1 (affected, PyPI)
35.1.0 (affected, PyPI)
35.1.1 (affected, PyPI)
35.2.0 (affected, PyPI)
35.2.1 (affected, PyPI)
35.3.0 (affected, PyPI)
35.4.0 (affected, PyPI)
35.4.1 (affected, PyPI)
35.5.0 (affected, PyPI)
35.6.0 (affected, PyPI)
35.6.1 (affected, PyPI)
35.7.0 (affected, PyPI)
35.8.0 (affected, PyPI)
35.8.1 (affected, PyPI)
35.8.2 (affected, PyPI)
35.8.3 (affected, PyPI)
35.8.4 (affected, PyPI)
35.8.5 (affected, PyPI)
Ecosystem version events: introduced 1.16.1; fixed 35.9.0
Source events (ECOSYSTEM) 
[
  {
    "introduced": "1.16.1"
  },
  {
    "fixed": "35.9.0"
  }
]

Other versions: unaffected 		OSV GHSA-5j9r-fx4x-rpvg
rucio

rucio
PyPI 		36.0.0 (affected, PyPI)
36.0.0.post1 (affected, PyPI)
36.0.0.post2 (affected, PyPI)
36.0.0rc1 (affected, PyPI)
36.0.0rc2 (affected, PyPI)
36.0.0rc3 (affected, PyPI)
36.0.0rc4 (affected, PyPI)
36.0.0rc5 (affected, PyPI)
36.1.0 (affected, PyPI)
36.2.0 (affected, PyPI)
36.3.0 (affected, PyPI)
36.4.0 (affected, PyPI)
36.5.0 (affected, PyPI)
37.0.0 (affected, PyPI)
37.0.0rc1 (affected, PyPI)
37.0.0rc2 (affected, PyPI)
37.0.0rc3 (affected, PyPI)
37.0.0rc4 (affected, PyPI)
37.1.0 (affected, PyPI)
37.1.0.post1 (affected, PyPI)
37.2.0 (affected, PyPI)
37.3.0 (affected, PyPI)
37.4.0 (affected, PyPI)
37.5.0 (affected, PyPI)
37.6.0 (affected, PyPI)
37.7.0 (affected, PyPI)
37.7.1 (affected, PyPI)
38.0.0 (affected, PyPI)
38.0.0rc1 (affected, PyPI)
38.0.0rc2 (affected, PyPI)
38.0.0rc3 (affected, PyPI)
38.1.0 (affected, PyPI)
38.2.0 (affected, PyPI)
38.3.0 (affected, PyPI)
38.4.0 (affected, PyPI)
38.5.0 (affected, PyPI)
38.5.1 (affected, PyPI)
38.5.2 (affected, PyPI)
38.5.3 (affected, PyPI)
38.5.4 (affected, PyPI)
38.5.5 (affected, PyPI)
Ecosystem version events: introduced 36.0.0rc1; fixed 38.6.0
Source events (ECOSYSTEM) 
[
  {
    "introduced": "36.0.0rc1"
  },
  {
    "fixed": "38.6.0"
  }
]

Other versions: unaffected 		OSV GHSA-5j9r-fx4x-rpvg
rucio

rucio
PyPI 		39.0.0 (affected, PyPI)
39.0.0rc1 (affected, PyPI)
39.0.0rc2 (affected, PyPI)
39.1.0 (affected, PyPI)
39.2.0 (affected, PyPI)
39.3.0 (affected, PyPI)
39.3.1 (affected, PyPI)
39.4.0 (affected, PyPI)
39.4.1 (affected, PyPI)
39.4.2 (affected, PyPI)
40.0.0 (affected, PyPI)
40.0.0rc1 (affected, PyPI)
40.1.0 (affected, PyPI)
40.1.1 (affected, PyPI)
40.1.2 (affected, PyPI)
40.2.0 (affected, PyPI)
40.3.0 (affected, PyPI)
40.4.0 (affected, PyPI)
40.4.1 (affected, PyPI)
40.4.2 (affected, PyPI)
Ecosystem version events: introduced 39.0.0rc1; fixed 41.0.0rc1
Source events (ECOSYSTEM) 
[
  {
    "introduced": "39.0.0rc1"
  },
  {
    "fixed": "41.0.0rc1"
  }
]

Other versions: unaffected 		OSV GHSA-5j9r-fx4x-rpvg

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

Version / scoreVectorAuthority
3.1 / 8.1
high		 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NCNA: GitHub_M

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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