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CVE-2026-32935 is an observable timing discrepancy in phpseclib AES-CBC padding validation. The library did not validate padding in constant time, making applications that use its AES implementation in CBC mode susceptible to a padding-oracle timing attack. Affected releases are phpseclib 1.0.26 and earlier, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49.
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What an attacker gets, and what they’ve been doing with it.
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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.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A network-reachable, high-complexity vulnerability affecting the php-phpseclib package on supported Ubuntu releases that can result in high confidentiality impact.
A remotely accessible, high-complexity vulnerability with no required privileges or user interaction and high confidentiality impact, according to the provided CVSS vector. It is addressed by Ubuntu Security Notice USN-8769-1.
A padding oracle timing attack vulnerability in phpseclib affecting AES-CBC usage in multiple version branches.
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.