Denial of service in github.com/jackc/pgproto3/v2
Priority HIGH 72CWE-129Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 15 fixed, 7 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-129 and the CVSS impact.
Summary
The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00675 52nd percentileScored 2026-11-07
Fix Partial Red Hat: 16 advisoriesRed Hat: 15 fixed, 7 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | github.com/jackc/pgproto3/v2 (Go) | 2.0.0 – 2.3.3 | — | No fix listed | GHSA-jqcq-xjh3-6g23 |
- github.com/jackc/pgproto3/v2 (Go) Vendor— Affected 2.0.0 – 2.3.3 Fixed in — No fix listed GHSA-jqcq-xjh3-6g23
Remediation
Red Hat 16 advisories
- RHSA-2026:73987 Released 2026-09-30 · Red Hat rating CriticalRHOAI 3.3.7 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.3 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9, registry.redhat.io/rhoai/odh-data-science-pipelines-argo-argoexec-rhel9 +47
- RHSA-2026:24853 Released 2026-06-09 · Red Hat rating ImportantRed Hat Quay 3.15.5
- Red Hat Quay 3.15 registry.redhat.io/quay/quay-rhel8
- RHSA-2026:23345 Released 2026-06-04 · Red Hat rating ImportantMulticluster Global Hub 1.6.2 security update
- Multicluster Global Hub 1.6.6 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
Show 13 more Red Hat advisories
- RHSA-2026:22714 Released 2026-06-03 · Red Hat rating Importantosbuild-composer security update
- Red Hat Enterprise Linux AppStream (v. 9) osbuild-composer-165.1-2.el9_8, osbuild-composer-core-165.1-2.el9_8, osbuild-composer-worker-165.1-2.el9_8
- RHSA-2026:22465 Released 2026-06-02 · Red Hat rating ImportantRed Hat Quay 3.17.2
- Red Hat Quay 3.17 registry.redhat.io/quay/quay-rhel9
- RHSA-2026:22450 Released 2026-06-02 · Red Hat rating Importantosbuild-composer security update
- Red Hat Enterprise Linux AppStream (v. 10) osbuild-composer-165.1-2.el10_2, osbuild-composer-core-165.1-2.el10_2, osbuild-composer-worker-165.1-2.el10_2
- RHSA-2026:22423 Released 2026-06-02 · Red Hat rating ImportantMulticluster Global Hub 1.3.4 security update
- Multicluster Global Hub 1.3.4 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
- RHSA-2026:22347 Released 2026-06-01 · Red Hat rating ImportantMulticluster Global Hub 1.4.5 security update
- Multicluster Global Hub 1.4.9 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
- RHSA-2026:21769 Released 2026-05-28 · Red Hat rating ImportantMulticluster Global Hub 1.5.4 security update
- Multicluster Global Hub 1.5.8 registry.redhat.io/multicluster-globalhub/multicluster-globalhub-agent-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-grafana-rhel9, registry.redhat.io/multicluster-globalhub/multicluster-globalhub-manager-rhel9 +1
- RHSA-2026:21017 Released 2026-05-26 · Red Hat rating ImportantRed Hat Quay 3.14.8
- Red Hat Quay 3.14 registry.redhat.io/quay/quay-rhel8
- RHSA-2026:19375 Released 2026-05-19 · Red Hat rating ImportantRed Hat Quay 3.16.4
- Red Hat Quay 3.16 registry.redhat.io/quay/quay-rhel9
- RHSA-2026:11996 Released 2026-04-30 · Red Hat rating ImportantRed Hat Quay 3.9.21
- Red Hat Quay 3.9 registry.redhat.io/quay/quay-rhel8
- RHSA-2026:11916 Released 2026-04-29 · Red Hat rating ImportantRed Hat Quay 3.10.21
- Red Hat Quay 3.10 registry.redhat.io/quay/quay-rhel8
- RHSA-2026:11856 Released 2026-04-29 · Red Hat rating ImportantRed Hat Quay 3.12.17
- Red Hat Quay 3.12 registry.redhat.io/quay/quay-rhel8
- RHSA-2026:11217 Released 2026-04-27 · Red Hat rating ImportantRHACS 4.8.11 security and bug fix update
- Red Hat Advanced Cluster Security 4.8 registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8, registry.redhat.io/advanced-cluster-security/rhacs-roxctl-rhel8, registry.redhat.io/advanced-cluster-security/rhacs-scanner-rhel8 +2
- RHSA-2026:11070 Released 2026-04-27 · Red Hat rating ImportantRHACS 4.8.11 security and bug fix update
- Red Hat Advanced Cluster Security 4.8 registry.redhat.io/advanced-cluster-security/rhacs-main-rhel8, registry.redhat.io/advanced-cluster-security/rhacs-roxctl-rhel8, registry.redhat.io/advanced-cluster-security/rhacs-scanner-rhel8 +2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Assisted Installer for Red Hat OpenShift Container Platform 2 | Affected | No fix yet |
| Multicluster Engine for Kubernetes | Affected | No fix yet |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Cluster Manager CLI | Affected | No fix yet |
| Red Hat OpenShift on AWS | Affected | No fix yet |
| Red Hat Quay 3 | Affected | No fix yet |
| Multicluster Global Hub 1.3.4 | Fixed | RHSA-2026:22423 |
| Multicluster Global Hub 1.4.9 | Fixed | RHSA-2026:22347 |
| Multicluster Global Hub 1.5.8 | Fixed | RHSA-2026:21769 |
| Multicluster Global Hub 1.6.6 | Fixed | RHSA-2026:23345 |
| Red Hat Advanced Cluster Security 4.8 | Fixed | RHSA-2026:11070, RHSA-2026:11217 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:22450 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:22714 |
| Red Hat OpenShift AI 3.3 | Fixed | RHSA-2026:73987 |
| Red Hat Quay 3.10 | Fixed | RHSA-2026:11916 |
| Red Hat Quay 3.12 | Fixed | RHSA-2026:11856 |
| Red Hat Quay 3.14 | Fixed | RHSA-2026:21017 |
| Red Hat Quay 3.15 | Fixed | RHSA-2026:24853 |
| Red Hat Quay 3.16 | Fixed | RHSA-2026:19375 |
| Red Hat Quay 3.17 | Fixed | RHSA-2026:22465 |
| Red Hat Quay 3.9 | Fixed | RHSA-2026:11996 |
Not affected: 20 products
- Multicluster Global Hub
- Multicluster Global Hub 1.3.4
- Multicluster Global Hub 1.4.9
- Multicluster Global Hub 1.5.8
- Multicluster Global Hub 1.6.6
- Red Hat Advanced Cluster Security 4
- Red Hat Advanced Cluster Security 4.8
- Red Hat Hardened Images
- Red Hat OpenShift AI (RHOAI)
- Red Hat OpenShift AI 3.3
- Red Hat OpenShift Container Platform 4
- Red Hat Quay 3
- Red Hat Quay 3.10
- Red Hat Quay 3.12
- Red Hat Quay 3.14
- Red Hat Quay 3.15
- Red Hat Quay 3.16
- Red Hat Quay 3.17
- Red Hat Quay 3.9
- Red Hat Trusted Artifact Signer
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32286
- 2026-10-03 Alias added: GHSA-jqcq-xjh3-6g23
- 2026-10-07 Fix available: RHSA-2026:73987 · Red Hat
- 2026-10-16 EPSS moved to the 50th–90th percentile
References
Advisory 3
More jackc Pgproto3 vulnerabilities
- TI-2024-18142 pgx SQL Injection via Protocol Message Size Overflow CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-32286 · CVE Program
- CVE-2026-32286 · NVD
- FIRST EPSS
- GHSA-jqcq-xjh3-6g23 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-32286 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences