CVE-2024-27304

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 38% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

pgx is a PostgreSQL driver and toolkit for Go. SQL injection can occur if an attacker can cause a single query or bind message to exceed 4 GB in size. An integer overflow in the calculated message size can cause the one large message to be sent as multiple messages under the attacker's control. The problem is resolved in v4.18.2 and v5.5.4. As a workaround, reject user input large enough to cause a single query or bind message to exceed 4 GB in size.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
62.4%
KEV
Not listed

Published

March 6, 2024

Last Modified

May 21, 2026

Advisory Details (7)

Auto-updated Jun 20, 2026
Patch available. Sources: github_commit, github.
github_commit

commit adbb38f298c7 (jackc/pgx)

Fix landed in jackc/pgx commit adbb38f298c7 — awaiting tagged release

https://github.com/jackc/pgx/commit/adbb38f298c76e283ffc7c7a3f571036fea47fd4
github Patch Available

SQL Injection via Protocol Message Size Overflow · Advisory · jackc/pgproto3 · GitHub

https://github.com/jackc/pgproto3/security/advisories/GHSA-7jwh-3vrq-q3m8
github_commit

commit 945c2126f6db (jackc/pgproto3)

Fix landed in jackc/pgproto3 commit 945c2126f6db — awaiting tagged release

https://github.com/jackc/pgproto3/commit/945c2126f6db8f3bea7eeebe307c01fe92bca007
generic
https://www.youtube.com/watch?v=Tfg1B8u1yvE
github Patch Available

SQL Injection via Protocol Message Size Overflow · Advisory · jackc/pgx · GitHub

https://github.com/jackc/pgx/security/advisories/GHSA-mrww-27vc-gghv
github_commit

commit f94eb0e2f967 (jackc/pgx)

Fix landed in jackc/pgx commit f94eb0e2f967 — awaiting tagged release

https://github.com/jackc/pgx/commit/f94eb0e2f96782042c96801b5ac448f44f0a81df
github_commit

commit c543134753a0 (jackc/pgx)

Fix landed in jackc/pgx commit c543134753a0 — awaiting tagged release

https://github.com/jackc/pgx/commit/c543134753a0c5d22881c12404025724cb05ffd8

Vendor Advisories for CVE-2024-27304(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatadvanced-cluster-security/rhacs-scanner-slim-rhel8:4.3.5-32024-03-13redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 1 ecosystem)
Go(5)
PackageVulnerable rangeFixed inDependents
github.com/jackc/pgproto3—2.3.3—
github.com/jackc/pgproto3/v2—2.3.3—
github.com/jackc/pgx———
github.com/jackc/pgx/v4—4.18.2—
github.com/jackc/pgx/v5—5.5.4—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-07-23 02:35 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:23 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-27304?
CVE-2024-27304 is a critical vulnerability published on March 6, 2024. pgx is a PostgreSQL driver and toolkit for Go. SQL injection can occur if an attacker can cause a single query or bind message to exceed 4 GB in size. An integer overflow in the calculated message size can cause the one large message to be sent as multiple messages under the attacker's control. The…
When was CVE-2024-27304 disclosed?
CVE-2024-27304 was first published in the National Vulnerability Database on March 6, 2024, with the most recent update on May 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-27304 actively exploited?
CVE-2024-27304 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-27304?
CVE-2024-27304 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-27304?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-27304, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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