CVE-2026-12547 (GCVE-0-2026-12547)

Vulnerability from cvelistv5 – Published: 2026-07-21 18:35 – Updated: 2026-11-06 17:57
VLAI
Title
Libsoup: information disclosure in libsoup via soupauthmanager proxy credential leak on proxy switch
Summary
SoupAuthManager caches proxy authentication credentials without scoping them to the proxy authority (host:port). When the proxy configuration changes (e.g., via system settings or WPAD), cached Proxy-Authorization headers from the previous proxy are sent to the new proxy, leaking credentials.
Severity
3.4 (Low)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 19:02 UTC
CWE
  • CWE-201 - Insertion of Sensitive Information Into Sent Data
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1209 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 10     cpe:/a:redhat:enterprise_linux:10
Create a notification for this product.
Date Public
2026-04-25 00:00
Credits
Red Hat would like to thank Cavid (Yes We Hack) for reporting this issue.
Show details on NVD website
To clipboard 

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