How severe is CVE-2026-41636?

No CVSS score has been assigned to CVE-2026-41636 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-41636?

CVE-2026-41636 affects the following packages: thrift (npm). Ecosystems affected: npm.

How do I fix CVE-2026-41636?

Update thrift to 0.23.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-41636 is resolved across your whole dependency graph.

How do I detect CVE-2026-41636 in my npm dependencies?

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

How do I mitigate CVE-2026-41636 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is CVE-2026-41636 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-41636 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-2026-41636?

CVE-2026-41636 has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 39th 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-2026-41636?

CVE-2026-41636 is classified as CWE-674 (CWE-674). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-41636 published, and has it been updated?

CVE-2026-41636 was published on April 28, 2026 and was last updated on November 1, 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-2026-41636 — thrift

CVE-2026-41636 is a CWE-674 vulnerability in thrift. A fix is available for thrift — see the affected versions and patch details below.

Apache Thrift: Node.js skip() recursion

Also known asBIT-thrift-2026-41636GHSA-r67j-r569-jrwp

Published

Apr 28, 2026

Updated

Nov 1, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 9, 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.
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-2026-41636.

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs39th percentile — riskier than 39% 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.

294other npm packages depend on this — each one inherits the vulnerability until it's patched upstream

thriftnpm

2.1Mdownloads / week

Description

Uncontrolled Recursion vulnerability in Apache Thrift Node.js bindings

This issue affects Apache Thrift: before 0.23.0.

Users are recommended to upgrade to version 0.23.0, which fixes the issue.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`thrift`	all versions	0.23.0`npm install thrift@0.23.0`

Affected Products

1 product · 1 configurations

Application

thriftapache

< 0.23.0

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for thrift, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update thrift to 0.23.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-41636 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

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 HatModerate

This vulnerability is rated as Moderate severity because while an unauthenticated remote attacker can trigger a denial of service by causing the process to crash, it does not lead to code execution or compromise data confidentiality or integrity. The issue is isolated to the Node.js bindings of Apache Thrift during…

Product	Fixed in	Advisory
Multicluster Global Hub 1.3.4	`multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779212259`	RHSA-2026:22423
Multicluster Global Hub 1.4.9	`multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779579439`	RHSA-2026:22347
Multicluster Global Hub 1.5.8	`multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1778867753`	RHSA-2026:21769
Multicluster Global Hub 1.6.6	`multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1780167118`	RHSA-2026:23345
Red Hat Advanced Cluster Management for Kubernetes 2.15	`rhacm2/acm-grafana-rhel9:1780677003`	RHSA-2026:24539

Frequently Asked Questions

Uncontrolled Recursion vulnerability in Apache Thrift Node.js bindings This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.