How severe is CVE-2024-7340?

CVE-2024-7340 has a CVSS score of 8.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2024-7340?

CVE-2024-7340 affects the following packages: weave (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2024-7340?

Update weave to 0.50.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-7340 is resolved across your whole dependency graph.

How do I detect CVE-2024-7340 in my PyPI dependencies?

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

How do I mitigate CVE-2024-7340 if there is no patch (or I can't update yet)?

Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Is CVE-2024-7340 actively exploited in the wild?

No public exploit code has been indexed for CVE-2024-7340 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-2024-7340?

CVE-2024-7340 has an EPSS (Exploit Prediction Scoring System) score of 5.0%, placing it in the 92th 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-2024-7340?

CVE-2024-7340 is classified as Path Traversal (CWE-22), Improper Input Validation (CWE-20). 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.

Is there exploit tooling available for CVE-2024-7340?

A Nuclei detection template exists for CVE-2024-7340, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2024-7340 published, and has it been updated?

CVE-2024-7340 was published on July 31, 2024 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍

🐍 PyPI

Not in CISA KEV

HIGH severity

CVE-2024-7340 — weave

HIGHFix: wandb/weave#1657

CVE-2024-7340 is a high-severity (CVSS 8.8) Path Traversal vulnerability in weave. A fix is available for weave — see the affected versions and patch details below.

W&B Weave server remote arbitrary file leak and privilege escalation

Also known asGHSA-r49h-6qxq-624fPYSEC-2026-2035

Published

Jul 31, 2024

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

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-2024-7340.

EPSS Exploitation Probability

via FIRST.org ↗

5.0%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs92th percentile — riskier than 92% of all scored CVEsHighest risk

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

🐍weave

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

The Weave server API allows remote users to fetch files from a specific directory, but due to a lack of input validation, it is possible to traverse and leak arbitrary files remotely. In various common scenarios, this allows a low-privileged user to assume the role of the server admin.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`weave`	all versions	0.50.8`pip install --upgrade 'weave==0.50.8'`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for weave, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update weave to 0.50.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-7340 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

How to detect CVE-2024-7340

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2024-7340 -u https://target

Template: W&B Weave Server - Remote Arbitrary File Leak
Severity: high
Impact: Authenticated low-privileged attackers can exploit path traversal to read arbitrary files from the server, potentially accessing sensitive configuration files and credentials to escalate privileges to admin level.
Remediation: Update W&B Weave Server to a version that includes the fix from pull request #1657 addressing the path traversal vulnerability.

Template by ProjectDiscovery nuclei-templates (iamnoooob, rootxharsh, pdresearch), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

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