Loading vulnerability…
CVE-2026-55701 affects the githubreceiver component in opentelemetry-collector-contrib. In affected versions, the receiver silently ignores operator-configured required_headers authentication, so requests to the GitHub webhook endpoint may be accepted even when the deployment is configured to require specific headers for authentication. According to the advisory, the flaw is due to missing RequiredHeaders enforcement in handleReq(). As a result, webhook requests can be processed without the intended header-based access control being validated.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
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.
No public activity tracked yet. Mallory keeps watching.
No public activity observed for this vulnerability.
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.