How severe is CVE-2025-59829?

CVE-2025-59829 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-59829 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59829?

CVE-2025-59829 affects Anthropic Claude Code. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59829?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-59829 have an EU (EUVD) identifier?

Yes. CVE-2025-59829 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32506.

When was CVE-2025-59829 published?

CVE-2025-59829 was published on 2025-10-03 and last updated on 2026-06-17.

CVE-2025-59829

CVE-2025-59829 is a medium-severity vulnerability in Anthropic Claude Code with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-61.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 2.3
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32506
Weakness: CWE-61
Affected product: Anthropic Claude Code
Published: 2025-10-03
Last modified: 2026-06-17

Description

Claude Code is an agentic coding tool. Versions below 1.0.120 failed to account for symlinks when checking permission deny rules. If a user explicitly denied Claude Code access to a file and Claude Code had access to a symlink pointing to that file, it was possible for Claude Code to access the file. Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to the latest version. This issue is fixed in version 1.0.120.

Frequently asked questions

What is CVE-2025-59829?: Claude Code is an agentic coding tool. Versions below 1.0.120 failed to account for symlinks when checking permission deny rules. If a user explicitly denied Claude Code access to a file and Claude Code had access to a symlink pointing to that file, it was possible for Claude Code to access the file. Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to the latest version. This issue is fixed in version 1.0.120.
How severe is CVE-2025-59829?: CVE-2025-59829 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-59829 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59829?: CVE-2025-59829 affects Anthropic Claude Code. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59829?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59829 have an EU (EUVD) identifier?: Yes. CVE-2025-59829 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32506.
When was CVE-2025-59829 published?: CVE-2025-59829 was published on 2025-10-03 and last updated on 2026-06-17.

References

https://github.com/anthropics/claude-code/security/advisories/GHSA-66m2-gx93-v996

Affected products (1)

cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*

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