CVE-2026-42826
Azure DevOps Information Disclosure Vulnerability
A public proof of concept exists; no exploitation attested.
- Published2026-05-07
- WeaknessCWE-200
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose information over a network.
Timeline
dates in UTC- 2026-05-0722:16CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-42826?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-42826?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
Advisories and patches
- msrc.microsoft.comVendor Advisory
Detection
read 2026-10-23 19:25 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 1 repository, unverifiedsam00/POC-CVE-2026-42826-2026-42826-Microsoft-Azure-DevOps-Information-Disclosure-Vulnerability PoC-in-GitHub
Sources
- CISA-ADPSSVC decisionnone2026-05-08
- OpenCVESSVC decisionnone—
- CNACVSS 3.110read 2026-10-23
- NVDCVSS 3.17.5read 2026-10-23
- CNAweakness (CWE)CWE-200read 2026-10-23
- FIRST EPSSEPSS score1.2 %2026-10-23
- PoC-in-GitHubproof of concept1read 2026-10-23
- Microsoft MSRCadvisory—
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Published
- 2026-05-07
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
- MSRC Title
- Azure DevOps Information Disclosure Vulnerability
Frequently asked questions
What is CVE-2026-42826?
Is CVE-2026-42826 actively exploited?
What is the CVSS score for CVE-2026-42826?
Hear about the next vulnerability in your software
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.