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CVE-2026-28780 is a heap-based buffer overflow in Apache HTTP Server's mod_proxy_ajp module. When mod_proxy_ajp is configured to connect to a malicious AJP backend, the backend can return a crafted AJP message that causes a four-byte attacker-controlled write beyond the end of a heap buffer. Apache HTTP Server versions through 2.4.66 are affected. The memory corruption can enable arbitrary code execution.
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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 valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
43 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Important-severity vulnerability addressed by an AlmaLinux security advisory (CLSA-2026-1778847162). The supplied CVSS v3 vector rates confidentiality, integrity, and availability impact as high, while requiring network access and high attack complexity.
A vulnerability covered by a TuxCare CentOS 8.5 security notice. Its supplied CVSS v2 vector indicates network-based exploitation with low complexity, no authentication, and complete confidentiality, integrity, and availability impact.
An Important-severity vulnerability referenced by a CentOS 7 TuxCare local security-check plugin. The supplied CVSS v3.0 vector indicates a network-accessible issue with no privileges or user interaction required, high confidentiality, integrity, and availability impact, and high attack complexity.
A vulnerability referenced by the EulerOS security advisory; no technical impact details are provided.
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.