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CVE-2026-14677 is an integer-wraparound vulnerability in 32-bit PostgreSQL builds with the PL/Tcl (pltcl) or PL/Perl (plperl) procedural-language components. An attacker able to create an affected function can submit a crafted function body that causes an allocation size calculation to wrap, resulting in an undersized allocation followed by an out-of-bounds write. Affected versions are PostgreSQL releases before 18.6, 17.11, 16.15, 15.19, and 14.24.
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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.
27 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by the Oracle Linux 9 PostgreSQL package security update; no technical flaw description is provided.
A vulnerability addressed by the Oracle Linux 9 PostgreSQL-related package security update.
A vulnerability addressed by the AlmaLinux ALSA-2026:67280 update for PostgreSQL 18 packages.
Arbitrary code execution in 32-bit PostgreSQL pltcl and plperl components.
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.