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Checkov CVE-2026-0311

| EUVDEUVD-2026-101676 LOW
Server-Side Request Forgery (SSRF) (CWE-918)
2026-10-14 palo_alto GHSA-c29w-h8jf-rqpv
1.1
CVSS 4.0 · Vendor: palo_alto
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Supply malicious IaC content to target
  2. Delivery
    Victim runs Checkov scan on host
  3. Exploit
    Parser issues crafted internal request (SSRF)
  4. Execution
    Reach internal/metadata services
  5. Impact
    Limited internal exposure or disruption

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires the attacker to influence the Infrastructure-as-Code content that Checkov parses, and a victim must actually run a Checkov scan on a host that has network reachability to the internal services of interest (UI:P passive interaction, AV:L local vector). It does not require authentication (PR:N) but is NOT remotely triggerable over the network - the attacker needs their crafted input to be processed locally by the tool. Limiting factors: the host must be positioned to reach valuable internal/metadata endpoints, impact is confined to low-severity SSRF (no confidentiality/integrity impact on the Checkov host itself), and only versions below 3.2.533 are affected, so patched deployments are not exploitable.

Impact

This is a genuinely low-priority issue, and the signals are consistent rather than conflicting. The vendor-assigned CVSS 4.0 score is only 1.1, driven by a local attack vector (AV:L), passive user interaction (UI:P), no privileges (PR:N), and only minor availability/subsequent-system impact (VA:L/SC:L/SI:L) with no confidentiality or integrity impact on the vulnerable system itself. Exploitation is reflected in the CVSS temporal field as E:U (unproven), there is no CISA KEV listing and no public POC identified, so exploitation status is 'no public exploit identified at time of analysis.' The one nuance worth flagging: the vector is PR:N (unauthenticated) yet AV:L (local), which matches the description's phrase 'local unauthenticated user' - the attacker does not need credentials but must already be able to run Checkov locally against attacker-influenced input, which is the realistic limiting factor. Bottom line: a real-but-minor SSRF in a developer/CI tool, not an urgent patch priority, and a patch is already available.

Exploit ScenarioDerived

An attacker crafts a malicious Infrastructure-as-Code configuration (e.g., in a pull request or shared repo) that, when scanned by Checkov on a developer or CI host, coerces the tool into issuing network requests to internal services the host can reach. Because the vector is local with passive user interaction (UI:P), the victim simply runs a routine scan over the attacker-supplied content; no public exploit code has been identified at time of analysis.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 14, 2026

Server-side request forgery in Palo Alto Networks Checkov by Prisma Cloud before version 3.2.533 allows a local unauthenticated attacker to induce the tool to make unauthorized network requests from the host to internal services. The attacker must influence Infrastructure-as-Code content parsed by Checkov, and a victim must run a scan on a host with network reachability to the target services; it is not remotely triggerable. No public exploit code has been identified, and the impact is limited to low-severity SSRF without confidentiality or integrity impact on the Checkov host itself, though other systems may experience low confidentiality impact. A vendor patch is available in version 3.2.533.

RemediationAI

Upgrade to Checkov by Prisma Cloud version 3.2.533 or later. The vendor has released a patch. As a compensating control, restrict network access from hosts running Checkov scans to only necessary endpoints, and avoid running scans with untrusted IaC content in environments that have access to sensitive internal services or cloud metadata endpoints. Note that restricting network access may break legitimate scans that require fetching remote modules. Run Checkov in an isolated container or sandbox without network connectivity to internal services when processing untrusted IaC. Monitor for anomalous outbound requests from CI/CD runners or developer workstations performing Checkov scans. Refer to the vendor advisory at https://security.paloaltonetworks.com/CVE-2026-0311 for updated information.

Affected VersionsENISA

Checkov by Prisma Cloud 0 <3.2.533

Affected Packages

euvd checkov_by_prisma_cloud fix: 3.2.533

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This is a server-side request forgery (SSRF, CWE-918) vulnerability in Checkov by Prisma Cloud, a static analysis tool for Infrastructure-as-Code (IaC) that parses Terraform, CloudFormation, Kubernetes manifests, and similar files. During scanning, certain IaC constructs-such as remote module sources or URLs embedded in resource definitions-can cause Checkov to make network requests. If an attacker can influence the IaC content being scanned, they can manipulate these requests to target internal services, including cloud metadata endpoints or internal APIs, leading to information disclosure. The attack vector is local (AV:L) and requires user interaction (UI:R) because the victim must run the scan, but no authentication is required (PR:N). The scope is changed (S:C) with low confidentiality impact (C:L) on other systems, while the vulnerable component itself has no integrity or availability impact. Affected versions are prior to 3.2.533.

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Severity by source

Vendor (palo_alto) PRIMARY 1.1 LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
vuln.today AI 3.6 LOW

Local tool execution on attacker-influenced IaC (AV:L) with no auth (PR:N) but a required scan action (UI:R); SSRF crosses to internal services (S:C) exposing limited data (C:L).

3.1 AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N

Primary rating from Vendor (palo_alto).

CVSS VectorVendor: palo_alto

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
None
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
Low
Subsequent system: Integrity
Low
Subsequent system: Availability
None

Lifecycle Timeline

1
Patch available
Oct 14, 2026 - 22:49 EUVD

DescriptionCVE.org

A server-side request forgery vulnerability in Palo Alto Networks Checkov by Prisma® Cloud enables a local unauthenticated user to make unauthorized network requests from host to internal services.

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Prevalence
Medium
popular open-source IaC scanner common in CI/CD, not every environment
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity LOW
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Low
Technical Impact
Partial

Priority Score

6
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +6
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

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