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CVE-2026-46406

Claude Code is an agentic coding tool. From 2.1.59 until 2.1.128, the Claude Code /copy command wrote responses to a hardcoded, predictable path (/tmp/claude/response.md) without UID isolation, randomness, or symlink protection. The file was created world-readable (0644) in a world-traversable directory (0755), allowing any local user to read a privileged user's Claude response, which could contain secrets or credentials. Additionally, because the path was static and predictable, a local attack
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:962b05b38245ff563a577563443071d7b719796b1de04d6055630111d93e676b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-377","description":"CWE-377: Insecure Temporary File","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"claude-code","vendor":"anthropics","versions":[{"status":"affected","version":">= 2.1.59, < 2.1.128"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":4.4,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

3 source assertions
{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-377","description":"CWE-377: Insecure Temporary File","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /containers/cna/problemTypes/2/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/anthropics/claude-code/security/advisories/GHSA-4vp2-6q8c-pvq2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/anthropics/claude-code/security/advisories/GHSA-4vp2-6q8c-pvq2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6005a6c748373e28d6d23e0cbed8499ed2d40b7a8b69216eaf072a53204798fe · sha256:f9a076d4ad471083… · /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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