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CVE-2022-35961 is a signature-malleability flaw in the single-bytes-argument overloads of OpenZeppelin Contracts ECDSA.recover and ECDSA.tryRecover. The affected functions accept both conventional 65-byte ECDSA signatures and EIP-2098 compact signatures. The same valid signature can therefore be represented in alternate encodings that recover the same signer. Contracts that enforce signature replay or reuse protection by recording the raw signature bytes, rather than the signed message digest or a validated nonce, can treat the alternate encoding as a new signature.
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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.
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.