VulnSocial

CVE-2026-4427Disclosure

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in pgproto3. A malicious or compromised PostgreSQL server can exploit this by sending a DataRow message with a negative field length. This input validation vulnerability can lead to a denial of service (DoS) due to a slice bounds out of range panic.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-129: Improper Validation of Array Index

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-03-19); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-03-19: 1Mentions · 2026-03-23: 1Technical Details · 2026-03-19: 1Technical Details · 2026-03-23: 103-1903-23
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-03-191
Disclosure1
2026-03-231
General1
Full discourse2 posts
  • CVE@CVEnew
    General

    CVE-2026-4427 A flaw was found in pgproto3. A malicious or compromised PostgreSQL server can exploit this by sending a DataRow message with a negative field length. This input valida… https://www.cve.org/CVERecord?id=CVE-2026-4427

    Post summary

    The snippet references CVE‑2026‑4427, noting a data validation flaw in PostgreSQL’s pgproto3 that can be triggered by a negative field length in a DataRow message, but provides no PoC, exploit code, active usage, patch details, or false‑positive claim.

    00000108
    56.8K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-4427 Input Validation Vulnerability in pgproto3 Causing Denial of Service https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-4427

    Post summary

    The snippet announces CVE‑2026‑4427, describing it as an input‑validation flaw in pgproto3 that can lead to a denial‑of‑service, without reference to exploitation, patches, or PoC details.

    0000039
    4.0K followersView on X

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