MEDIUMVulnerability
CVE-2026-66339
A flaw was found in libsoup. After a CONNECT tunnel is established through an HTTP proxy, libsoup incorrectly attaches the Proxy-Authorization header to subsequent HTTPS requests sent through that tunnel to the destination server. This allows the destination server to capture proxy credentials, leading to information disclosure.
Properties
- severity
- MEDIUM
- score
- 6.5
- cve_id
- CVE-2026-66339
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- published_at
- 2026-07-24T23:16:52.187
- last_modified
- 2026-08-24T16:44:01.940
Related Entities (8)
AFFECTS_PRODUCT (6)
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→[Product]
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HAS_WEAKNESS (1)
→[Weakness]Insertion of Sensitive Information Into Sent Data
DESCRIBED_BY (1)
→[Source]NVD
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