How severe is CVE-2026-24053?

CVE-2026-24053 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-24053 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24053?

CVE-2026-24053 affects Anthropic Claude Code. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24053?

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

Does CVE-2026-24053 have an EU (EUVD) identifier?

Yes. CVE-2026-24053 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5156.

When was CVE-2026-24053 published?

CVE-2026-24053 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-24053

CVE-2026-24053 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.7
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5156
Weakness: CWE-22
Affected product: Anthropic Claude Code
Published: 2026-02-03
Last modified: 2026-06-17

Description

Claude Code is an agentic coding tool. Prior to version 2.0.74, due to a Bash command validation flaw in parsing ZSH clobber syntax, it was possible to bypass directory restrictions and write files outside the current working directory without user permission prompts. Exploiting this required the user to use ZSH and the ability to add untrusted content into a Claude Code context window. This issue has been patched in version 2.0.74.

Frequently asked questions

What is CVE-2026-24053?: Claude Code is an agentic coding tool. Prior to version 2.0.74, due to a Bash command validation flaw in parsing ZSH clobber syntax, it was possible to bypass directory restrictions and write files outside the current working directory without user permission prompts. Exploiting this required the user to use ZSH and the ability to add untrusted content into a Claude Code context window. This issue has been patched in version 2.0.74.
How severe is CVE-2026-24053?: CVE-2026-24053 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-24053 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24053?: CVE-2026-24053 affects Anthropic Claude Code. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24053?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24053 have an EU (EUVD) identifier?: Yes. CVE-2026-24053 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5156.
When was CVE-2026-24053 published?: CVE-2026-24053 was published on 2026-02-03 and last updated on 2026-06-17.

References

https://github.com/anthropics/claude-code/security/advisories/GHSA-q728-gf8j-w49r

Affected products (1)

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

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