CVE-2026-6734
CVE-2026-6734: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
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 severityHigh7.5
High [CVE-2026-6734] Information disclosure and data integrity issues due to incorrect Socks5ProxyAgent connection routing
CVE-2026-6734Source published Source updated
Impact: When using Socks5ProxyAgent, undici reuses a single connection pool across different origins without verifying that the pool's origin matches the requested origin. All requests are dispatched through the pool connected to the first origin, regardless of the intended destination. This causes cross-origin request routing: credentials and request data intended for origin B are sent to origin A, responses from the wrong origin are trusted, and HTTPS requests may be silently downgraded to HTTP. Impacted users are applications that use Socks5ProxyAgent (directly or via setGlobalDispatcher) and make requests to more than one origin. This was introduced in undici 7.23.0 via PR #4385 and affects all versions through 8.1.0. Patches: Upgrade to undici v7.26.0 or v8.2.0. Workarounds: Use a…
- Affected products in this advisory
- Cryostat 4 on RHEL 9
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
16 more entries in the full advisory.
- Source-reported affected versions
- 7.23.0
- 8.1.0
- Source-reported fixed versions
- 26.0
- cryostat/cryostat-grafana-dashboard-rhel9:4.2.0-13
- nodejs24-1:24.18.0-1.el10_2
- nodejs:24-8100020260630152626.6d880403
46 more entries in the full advisory.
- Mitigation guidance
- The single most impactful mitigation is applying network egress controls to restrict which external destinations affected applications can reach. Because the vulnerability causes requests to be misrouted to wrong origins, limiting the set of reachable origins directly reduces the attack surface. These controls collectively limit the blast radius of the connection pool misrouting — the attacker must compromise one of the explicitly allowed destinations rather than any arbitrary origin — but they do not fix the underlying logic bug.
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