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Apache Traffic Server contains a flaw in its handling of multiplexed HTTP/2 origin connections whereby an existing origin session can be reused for a new request hostname without re-verifying that the origin server certificate is valid for that new hostname. In affected versions, the connection reuse logic for HTTP/2 origin sessions fails to enforce hostname coverage checks on the certificate when a multiplexed connection is repurposed across requests targeting different hostnames. This breaks the expected binding between TLS certificate identity and the requested origin host, weakening origin authentication for reused upstream connections.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.