141 lines
6.1 KiB
JSON
141 lines
6.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-46406",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-13T21:04:10.932Z",
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"datePublished": "2026-06-29T14:03:14.683Z",
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"dateUpdated": "2026-06-29T15:26:11.153Z"
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},
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"containers": {
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"cna": {
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"title": "Claude Code: Insecure Temporary File in /copy Command Enables Response Disclosure and Symlink-Based File Write",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-59",
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"lang": "en",
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"description": "CWE-59: Improper Link Resolution Before File Access ('Link Following')",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-200",
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"lang": "en",
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"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-377",
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"lang": "en",
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"description": "CWE-377: Insecure Temporary File",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "LOW",
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"userInteraction": "ACTIVE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 4.4,
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"baseSeverity": "MEDIUM",
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"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",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/anthropics/claude-code/security/advisories/GHSA-4vp2-6q8c-pvq2",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/anthropics/claude-code/security/advisories/GHSA-4vp2-6q8c-pvq2"
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}
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],
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"affected": [
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{
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"vendor": "anthropics",
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"product": "claude-code",
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"versions": [
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{
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"version": ">= 2.1.59, < 2.1.128",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-06-29T14:03:14.683Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "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 attacker could pre-create the directory and plant a symlink at the expected file path, causing the privileged process to follow the symlink and overwrite an attacker-chosen file with the response text. Exploiting this required a local unprivileged user on the same system and a privileged user to run the /copy command. This vulnerability is fixed in 2.1.128."
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}
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],
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"source": {
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"advisory": "GHSA-4vp2-6q8c-pvq2",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-29T15:25:46.123210Z",
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"id": "CVE-2026-46406",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-29T15:26:11.153Z"
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}
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}
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]
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}
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} |