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CVE-2026-58154 is a memory-safety vulnerability in Apache Traffic Server affecting MIME and HTTP header parsing. The flaw can trigger out-of-bounds writes and integer overflows while the server processes crafted headers, indicating improper bounds handling and unsafe integer arithmetic in header-parsing logic. The issue affects Apache Traffic Server versions 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. Because the vulnerable code is exercised during parsing of network-supplied HTTP and MIME headers, the attack surface is remote.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds write or integer overflow vulnerability in Apache Traffic Server triggered while parsing MIME and HTTP headers.
A memory-safety vulnerability in Apache Traffic Server involving out-of-bounds writes and integer overflows during MIME and HTTP header parsing.
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.