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CVE-2024-45806 is an improper access-control vulnerability in Envoy's handling of internal trust boundaries. Envoy historically treated all RFC1918 private-address ranges as internal by default, including when internal_address_config was empty. Consequently, a client regarded by Envoy as originating from a private address could supply or manipulate x-envoy headers that should be restricted to trusted internal sources. This can cause Envoy or service-mesh policy components to make security-relevant decisions based on attacker-controlled header values.
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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.
If you can’t patch tonight, do this now.
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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Envoy vulnerability that could allow external sources to manipulate x-envoy headers.
An Envoy vulnerability that may permit external sources to manipulate x-envoy headers.
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.