187 lines
8.0 KiB
JSON
187 lines
8.0 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-2026-46354",
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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": "2026-05-13T18:37:30.991Z",
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"datePublished": "2026-07-07T21:10:01.899Z",
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"dateUpdated": "2026-07-08T13:01:25.192Z"
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},
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"containers": {
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"cna": {
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"title": "Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent token theft",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-347",
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"lang": "en",
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"description": "CWE-347: Improper Verification of Cryptographic Signature",
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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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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 9.1,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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"version": "3.1"
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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/coder/coder/security/advisories/GHSA-6x44-w3xg-hqqf",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/coder/coder/security/advisories/GHSA-6x44-w3xg-hqqf"
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},
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{
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"name": "https://github.com/coder/coder/pull/25286",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/pull/25286"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.24.5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.24.5"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.29.13",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.29.13"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.30.8",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.30.8"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.31.12",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.31.12"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.32.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.32.2"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.33.3",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.33.3"
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}
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],
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"affected": [
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{
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"vendor": "coder",
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"product": "coder",
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"versions": [
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{
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"version": ">= 2.33.0-rc.0, < 2.33.3",
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"status": "affected"
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},
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{
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"version": ">= 2.32.0-rc.0, < 2.32.2",
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"status": "affected"
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},
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{
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"version": ">= 2.31.0, < 2.31.12",
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"status": "affected"
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},
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{
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"version": ">= 2.30.0, < 2.30.8",
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"status": "affected"
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},
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{
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"version": ">= 2.29.0, < 2.29.13",
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"status": "affected"
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},
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{
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"version": "< 2.24.5",
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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": "2026-07-07T21:10:01.899Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Coder allows organizations to provision remote development environments via Terraform. In versions prior tp 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3, `azureidentity.Validate()` verifies that the PKCS#7 signer certificate chains to a trusted Azure CA but never verifies the PKCS#7 signature itself. An attacker can embed a legitimate Azure certificate alongside arbitrary content e.g. `{\"vmId\":\"<target>\"}` and the forged `vmId` will be accepted returning the victim workspace agent's session token. No authentication is required. The attacker only needs to know a target VM's `vmId` which is a `UUIDv4`. That's a practical limitation which would typically require prior access to be exploited. Versions 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 patch the issue. As a workaround, reconfigure any Azure templates to use token authentication rather than `azure-instance-identity`."
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}
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],
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"source": {
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"advisory": "GHSA-6x44-w3xg-hqqf",
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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": "2026-07-08T13:01:18.394796Z",
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"id": "CVE-2026-46354",
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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": "yes"
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},
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{
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"Technical Impact": "total"
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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": "2026-07-08T13:01:25.192Z"
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}
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}
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]
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}
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} |