CVE-2026-35189 is a resource-exhaustion vulnerability in OpenSSL X.509 extension caching. A certificate containing numerous nameRelativeToCRLIssuer CRL distribution points can trigger disproportionate heap growth when OpenSSL processes and retains CRL distribution-point extension data. A certificate within the approximately 100 KiB peer certificate-size limit can cause allocation of several hundred MiB of resident memory during a normal TLS handshake. The fix defers processing of CRL distribution-point extensions until their processed values are required for CRL processing, avoiding long-lived disproportionate allocations.
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No public exploit code observed for this vulnerability.
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15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An OpenSSL resource-exhaustion vulnerability in X.509 CRL distribution-point processing that lets a crafted certificate cause excessive heap allocation and denial of service.
A specific vulnerability referenced in connection with an OpenSSL security advisory; no technical details are provided in the content.
Unknown
An OpenSSL resource-exhaustion vulnerability where crafted certificates with numerous CRL distribution points can trigger excessive memory allocation and potentially deny service to TLS clients or servers requesting client certificates.
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.