CVE-2026-55211 is an out-of-bounds read vulnerability in surfio affecting versions prior to 0.0.19. The flaw is caused by improper validation of size fields while parsing irap files. A specially crafted irap file can cause the parser to read beyond the bounds of the intended memory region during file processing. The issue arises when malformed size metadata is trusted without sufficient bounds checking before memory access operations are performed.
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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.
1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.