How severe is CVE-2025-61140?

No CVSS score has been assigned to CVE-2025-61140 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2025-61140?

CVE-2025-61140 affects the following packages: jsonpath (npm). Ecosystems affected: npm.

How do I fix CVE-2025-61140?

Update jsonpath to 1.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-61140 is resolved across your whole dependency graph.

How do I detect CVE-2025-61140 in my npm dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jsonpath, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2025-61140 if there is no patch (or I can't update yet)?

Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Is CVE-2025-61140 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-61140 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2025-61140?

CVE-2025-61140 has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 45th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2025-61140?

CVE-2025-61140 is classified as CWE-1321 (CWE-1321), Deserialization of Untrusted Data (CWE-502). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2025-61140 published, and has it been updated?

CVE-2025-61140 was published on January 28, 2026 and was last updated on February 5, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦 npm

Not in CISA KEV

CVE-2025-61140 — jsonpath

Fix: dchester/jsonpath#195

CVE-2025-61140 is a CWE-1321 vulnerability in jsonpath. A fix is available for jsonpath — see the affected versions and patch details below.

JSONPath vulnerable to Prototype Pollution due to insufficient input validation of object keys in lib/index.js

Published

Jan 28, 2026

Updated

Feb 5, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
A successful exploit gives an attacker total control of the affected component, not partial access.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-61140.

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs45th percentile — riskier than 45% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

1Kother npm packages depend on this — each one inherits the vulnerability until it's patched upstream

jsonpathnpm

4.1Mdownloads / week

Description

The value function in jsonpath 1.1.1 lib/index.js is vulnerable to Prototype Pollution.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`jsonpath`	all versions	1.2.0`npm install jsonpath@1.2.0`

Affected Products

1 product · 1 configurations

Application

jsonpathdchester

1 version

1.1.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jsonpath, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update jsonpath to 1.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-61140 is resolved across your whole dependency graph.
Workarounds
Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

Product	Fixed in	Advisory
Red Hat Ansible Automation Platform 2.1	`ansible-automation-platform/automation-portal:1770282458`	RHSA-2026:2181
Red Hat Ansible Automation Platform 2.5	`ansible-automation-platform-25/lightspeed-rhel8:1772214630`	RHSA-2026:3962
Red Hat Ansible Automation Platform 2.6	`ansible-automation-platform-26/lightspeed-rhel9:1772552788`	RHSA-2026:3960
Red Hat Developer Hub 1.8	`rhdh/rhdh-hub-rhel9:1774545605`	RHSA-2026:6174
Red Hat Developer Hub 1.9	`rhdh/rhdh-hub-rhel9:1775140647`	RHSA-2026:6802
Self-service automation portal 2.0	`ansible-automation-platform/automation-portal:1770281704`	RHSA-2026:2180

Frequently Asked Questions

The value function in jsonpath 1.1.1 lib/index.js is vulnerable to Prototype Pollution.

O3 Security · Impact-Aware SCA

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