CVE-2026-12547
CVE-2026-12547: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityLow3.4
Low [CVE-2026-12547] information disclosure in libsoup via soupauthmanager proxy credential leak on proxy switch
CVE-2026-12547Source published Source updated
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. This vulnerability is deemed LOW because it requires the user changing the desktop proxy settings from an authenticated proxy to the attacker's proxy. Red Hat severity: Low — CVSS 3.4 (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N). Weakness: CWE-201. Affected Red Hat products: Red Hat Enterprise Linux 10. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: libsoup3.
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat package: libsoup3
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- If changing desktop proxy settings, close any applications using libsoup, then restart the application after the setting has been changed.
Android app · Google Play
Monitor future Red Hat CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.