126 lines
5.3 KiB
JSON
126 lines
5.3 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-2026-42590",
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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": "2026-04-29T00:31:15.724Z",
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"datePublished": "2026-05-14T15:36:30.386Z",
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"dateUpdated": "2026-05-15T15:57:55.433Z"
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},
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"containers": {
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"cna": {
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"title": "Gotenberg: ExifTool group-prefix syntax bypasses dangerous-tag blocklist",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-184",
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"lang": "en",
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"description": "CWE-184: Incomplete List of Disallowed Inputs",
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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": "LOW",
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"baseScore": 8.2,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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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:N/I:H/A:L",
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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/gotenberg/gotenberg/security/advisories/GHSA-7v3r-m9c8-r855",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-7v3r-m9c8-r855"
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}
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],
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"affected": [
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{
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"vendor": "gotenberg",
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"product": "gotenberg",
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"versions": [
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{
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"version": "< 8.30.0",
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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": "2026-05-14T15:36:30.386Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.30.0, The ExifTool metadata write blocklist in Gotenberg can be bypassed using ExifTool's group-prefix syntax, enabling arbitrary file rename, move, hardlink, and symlink creation on the server. ExifTool supports group-prefix syntax where File:FileName is processed identically to FileName -- the prefix is stripped by SetNewValue in Writer.pl before tag matching. The safeKeyPattern regex (^[a-zA-Z0-9\\-_.:]+$) allows colons, so prefixed tag names pass validation. Any prefix works: File:FileName, System:Directory, a:HardLink, etc. Additionally, FilePermissions, FileUserID, and FileGroupID pseudo-tags are not blocked at all and can modify file attributes without any prefix. This vulnerability is fixed in 8.30.0."
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}
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],
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"source": {
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"advisory": "GHSA-7v3r-m9c8-r855",
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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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"references": [
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{
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"url": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-7v3r-m9c8-r855",
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"tags": [
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"exploit"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-15T15:57:03.096551Z",
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"id": "CVE-2026-42590",
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"options": [
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{
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"Exploitation": "poc"
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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": "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": "2026-05-15T15:57:55.433Z"
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}
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}
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]
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}
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} |