CVE-2026-78183
Heap out‑of‑bounds write in DBD::Pg quote_float allowing memory corruption.
Is CVE-2026-78183 being exploited?
Not confirmed. CVE-2026-78183 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.55% probability of exploitation in the next 30 days.
How severe is CVE-2026-78183?
CVE-2026-78183 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-78183?
Yes. A fix has been recorded for CVE-2026-78183. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-78183 affect?
CVE-2026-78183 affects DBD::Pg 3.21.0, Perl applications using DBI/DBD::Pg, Apps calling $dbh->quote on float literals. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-78183?
Audit for DBD::Pg 3.21.0, avoid quoting untrusted floats, upgrade or apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Heap OOB write when quoting special floats (NaN/Inf/Infinity) via $dbh->quote, enabling memory corruption and potential arbitrary code execution.
Immediate action required