🛡️ CVE-2026-61668 — dirac

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-295 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

DIRAC: Pilot code downloaded over unverified HTTPS connection

Summary

The second stage pilot (pilot.tar) is downloaded by the initial wrapper script without any verification of the webservers' SSL certificate and the contained script is subsequently executed. The checksum is tested, but the reference checksum file is downloaded over the same unvalidated channel.

Details

The pilot wrapper downloads and executes the main second stage pilot script, but the SSL validation on this connection is explicitly disabled (to match old python < 2.7.9 behaviour):

https://github.com/DIRACGrid/DIRAC/blob/integration/src/DIRAC/WorkloadManagementSystem/Utilities/PilotWrapper.py#L292-L296

This means that the second stage pilot code is not verified in any way and could potentially be altered by a man-in-the-middle attack to execute arbitrary code in the pilot context (i.e. with access to the pilot proxy/credentials).

The HTTPS connection should be validated against both the system certificates and $X509_CERT_DIR and fail if neither validate correctly.

Impact

This would require a man-in-the-middle style attack against a grid site's network (i.e. changing the DNS or routing to redirect the pilot's connection); this is likely to be difficult which probably limits the potential impact.

Patched versions:

https://pypi.org/project/DIRAC/8.0.79/

https://pypi.org/project/DIRAC/9.0.22/

https://pypi.org/project/DIRAC/9.1.10/

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-61668 is classified as CWE-295: Improper Certificate Validation. A TLS certificate is accepted without proper verification, so a man-in-the-middle can present their own.

Affected software

CVE-2026-61668 is recorded against 1 package.

  • dirac (from 9.1.0 up to 9.1.10)

Timeline and source

Published on 13 July 2026 and last revised on 23 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Package)
pypi.org (Web)
pypi.org (Web)
pypi.org (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-295
Public Exploit ✅ No
Source OSV
Published 2026-07-13
Updated 2026-08-12
Modified 2026-07-23
Fix URL N/A

Affected Packages

Software From version Fixed in
dirac 9.1.0 9.1.10

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