MEDIUM
CVE-2026-40690
CWE-1220Published: April 24, 2026· Updated: Apr 27, 2026
4.3
CVSS v3.1
EPSS:0.06%probability of exploitation in 30 daysPercentile:18.6th
Official Description
The asset dependency graph did not restrict nodes by the viewer's DAG read permissions: a user with read access to at least one DAG could browse the asset graph for any other asset in the deployment and learn the existence and names of DAGs and assets outside their authorized scope.
Users are recommended to upgrade to version 3.2.1, which fixes this issue.
Technical Analysis
CVE-2026-40690 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
Apache1 product
airflow
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (3)
→
https://github.com/apache/airflow/pull/65273Issue Tracking · Patch
→
https://lists.apache.org/thread/bqt7y4g2cpj396b0sd20lv510ff19ndlMailing List · Vendor Advisory
→
http://www.openwall.com/lists/oss-security/2026/04/24/4Mailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2026-40690
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-1220
CISA KEVNo
EPSS (30d)0.06%
Affected1 vendor
PublishedApr 24, 2026
Related CVEs (CWE-1220)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-40690 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.