125 lines
5.4 KiB
JSON
125 lines
5.4 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-2026-23849",
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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": "2026-01-16T15:46:40.843Z",
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"datePublished": "2026-01-19T20:37:29.716Z",
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"dateUpdated": "2026-01-20T15:54:36.499Z"
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},
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"containers": {
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"cna": {
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"title": "File Browser vulnerable to Username Enumeration via Timing Attack in /api/login",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-208",
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"lang": "en",
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"description": "CWE-208: Observable Timing Discrepancy",
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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": 5.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "NONE",
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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:L/I:N/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/filebrowser/filebrowser/security/advisories/GHSA-43mm-m3h2-3prc",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/filebrowser/filebrowser/security/advisories/GHSA-43mm-m3h2-3prc"
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},
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{
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"name": "https://github.com/filebrowser/filebrowser/commit/24781badd413ee20333aba5cce1919d676e01889",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/filebrowser/filebrowser/commit/24781badd413ee20333aba5cce1919d676e01889"
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}
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],
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"affected": [
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{
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"vendor": "filebrowser",
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"product": "filebrowser",
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"versions": [
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{
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"version": "< 2.55.0",
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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": "2026-01-19T20:37:29.716Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "File Browser provides a file managing interface within a specified directory and can be used to upload, delete, preview, rename, and edit files. Prior to version 2.55.0, the JSONAuth. Auth function contains a logic flaw that allows unauthenticated attackers to enumerate valid usernames by measuring the response time of the /api/login endpoint. The vulnerability exists due to a \"short-circuit\" evaluation in the authentication logic. When a username is not found in the database, the function returns immediately. However, if the username does exist, the code proceeds to verify the password using bcrypt (users.CheckPwd), which is a computationally expensive operation designed to be slow. This difference in execution path creates a measurable timing discrepancy. Version 2.55.0 contains a patch for the issue."
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}
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],
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"source": {
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"advisory": "GHSA-43mm-m3h2-3prc",
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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": "2026-01-20T15:54:21.087323Z",
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"id": "CVE-2026-23849",
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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": "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": "2026-01-20T15:54:36.499Z"
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}
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}
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]
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}
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} |