VulnSocial

CVE-2026-78183Disclosure

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float. quote_float() allocates the length of the string + 1, which is the size of the bare numeric symbol plus NULL. But for special literals NaN, Inf, +Inf, -Inf, Infinity, +Infinity, -Infinity it emits the literal surrounded by quotes plus NULL, which is length + 3 bytes. Every recognised literal (case-insensitive) overflows by 2 bytes, a single quote and a NULL. This can be reached by the $dbh->quote method, for example $dbh->quote( "Infinity", DBI::SQL_NUMERIC ). This regression was introduced in 3.21.0 by the quote.c rewrite.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 2 mentions (2026-08-23); latest day: 1
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-08-23: 2Mentions · 2026-08-26: 1Patch / Workaround · 2026-08-26: 1Technical Details · 2026-08-23: 2Technical Details · 2026-08-26: 108-2308-26
Signal classification2 categories
Disclosure
266.7%
Patch
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-08-232
Disclosure2
2026-08-261
Patch1
Full discourse3 posts
  • SecAlerts@SecAlertsCo
    Patch

    🐘 DBD::Pg 3.21.0 for Perl: heap out-of-bounds write in quote_float() - CVSS 9.8, no auth needed. Upgrade to 3.21.1 now. CVE-2026-78183 #cybersecurity #ciso #vulnerabilities #perl https://secalerts.co/vulnerability/CVE-2026-78183?utm_campaign=x https://t.co/mA4fk8j5fE

    Post summary

    The tweet announces a critical heap OOB write in DBD::Pg version 3.21.0 (CVE-2026-78183) and urges users to upgrade to 3.21.1; it provides technical details but no PoC or active exploitation evidence.

    0000057
    881 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-78183 DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float. quote_float() allocates the length of the string + 1, which is the size of the bare nu… https://www.cve.org/CVERecord?id=CVE-2026-78183 ----- Traducción: CVE-2026-78183 DBD… http://infoflow.cloud`

    Post summary

    A new CVE-2026-78183 is disclosed for DBD::Pg 3.21.0, detailing a heap out-of-bounds write in the quote_float function due to incorrect allocation. No exploits, patches, or active exploitation information is provided.

    0000039
    102 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-78183 DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float. quote_float() allocates the length of the string + 1, which is the size of the bare nu… https://www.cve.org/CVERecord?id=CVE-2026-78183

    Post summary

    The tweet announces that CVE-2026-78183 is a heap out‑of‑bounds write in DBD::Pg and provides minimal technical detail, but no PoC, exploit, or patch information.

    000001.2K
    58.0K followersView on X

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