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CVE-2026-25723

Claude Code is an agentic coding tool. Prior to version 2.0.55, Claude Code failed to properly validate commands using piped sed operations with the echo command, allowing attackers to bypass file write restrictions. This vulnerability enabled writing to sensitive directories like the .claude folder and paths outside the project scope. Exploiting this required the ability to execute commands through Claude Code with the "accept edits" feature enabled. This issue has been patched in version 2.0.5
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:06f9fc807bafa72aa62a037f2a4e7c461d5a6d7212d4e1c8ccbb51d059c4a6dc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1634c9d32deb90ed7e7b7c73f5957fb0c27531aece664a44cb01511544420165 · sha256:8284e2d1545ad2db… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1634c9d32deb90ed7e7b7c73f5957fb0c27531aece664a44cb01511544420165 · sha256:8284e2d1545ad2db… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"claude-code","vendor":"anthropics","versions":[{"status":"affected","version":"< 2.0.55"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1634c9d32deb90ed7e7b7c73f5957fb0c27531aece664a44cb01511544420165 · sha256:8284e2d1545ad2db… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1634c9d32deb90ed7e7b7c73f5957fb0c27531aece664a44cb01511544420165 · sha256:8284e2d1545ad2db… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1634c9d32deb90ed7e7b7c73f5957fb0c27531aece664a44cb01511544420165 · sha256:8284e2d1545ad2db… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1634c9d32deb90ed7e7b7c73f5957fb0c27531aece664a44cb01511544420165 · sha256:8284e2d1545ad2db… · /containers/cna/problemTypes/1/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/anthropics/claude-code/security/advisories/GHSA-mhg7-666j-cqg4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/anthropics/claude-code/security/advisories/GHSA-mhg7-666j-cqg4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1634c9d32deb90ed7e7b7c73f5957fb0c27531aece664a44cb01511544420165 · sha256:8284e2d1545ad2db… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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