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CVE-2026-18536 affects Perl Data::Entropy versions before 0.010. The vulnerability arises because the module's remote entropy source implementations, including Data::Entropy::RawSource::RandomOrg and Data::Entropy::RawSource::RandomnumbersInfo, retrieve entropy over plain HTTP rather than an authenticated and integrity-protected channel. In addition, the integrity check in Data::Entropy::RawSource::RandomOrg trivially accepts any non-empty byte string, making response validation ineffective. As a result, when an application selects one of these remote sources through with_entropy_source, an on-path attacker can substitute the remote response and fully control the bytes returned by rand_bits and rand_int. The attacker can also influence the _checkbuf result, allowing manipulation of retry and sleep behavior.
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No public exploit code observed for this vulnerability.
6 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.
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Every observed campaign linking this CVE to a named adversary.
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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.