CVE detail
CVE-2026-3099
A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count (nc) attribute. This vulnerability allows a remote attacker to capture a single valid authentication header and replay it repeatedly. Consequently, the attacker can bypass authentication and gain unauthorized access to protected resources, impersonating the legitimate user.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
- CVE-2026-3099 Libsoup: libsoup: authentication bypass via digest authentication replay attackMicrosoft MSRC
Information published.
vendormsrc.microsoft.comJun 28, 2026, 9:02 AM - https://gitlab.gnome.org/GNOME/libsoup/-/issues/495gitlab.gnome.org
No excerpt available.
Exploitgitlab.gnome.orgMar 12, 2026, 2:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2442232bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMar 12, 2026, 2:16 PM - https://access.redhat.com/security/cve/CVE-2026-3099access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 12, 2026, 2:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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