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CVE-2026-45137 is a logic error in anchor-lang affecting versions 1.0.0 through before 1.0.2. Anchor's TryFrom<&AccountInfo> implementation for Program<'a, T> used Pubkey::default() as a sentinel to distinguish the untyped Program<()> case from typed program validation. Because the Solana system program ID is also Pubkey::default(), accounts declared as Program<'info, System> were incorrectly handled like the untyped case and accepted any executable program account rather than strictly validating the real system program ID. As a result, Anchor programs that assumed the runtime enforced the identity of Program<'info, System> could be tricked into invoking attacker-supplied executable programs in place of the system program during CPI flows.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
4 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.