01 Record
CVE-2026-117507
a2aproject a2a-java TaskManager.saveTaskEvent race condition
MediumPUBLISHEDCNA: VulDB
CNA base score5.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
02 Description
a2aproject a2a-java TaskManager.saveTaskEvent race condition
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.34% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 27.6% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-27.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-27 15:00Z2 DAYS AGO
- Last updated
- 2026-10-27 15:00Z2 DAYS AGO
- Reserved
- 2026-10-27
- Assigning CNA
- VulDB
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.2
- Document digest
- 03bf1675bb153d5d0227ffd0bd51126a2ed68fbb16901badb2a02a6ed8fbdc38
05 Affected products
VendorProductVersionsPlatforms
06 References
- vuldb.comVDB-427074 | a2aproject a2a-java TaskManager.saveTaskEvent race conditionhttps://vuldb.com/vuln/427074
- vuldb.comVDB-427074 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/427074/cti
- vuldb.comCVE-2026-117507 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-117507
- vuldb.comSubmit #1015060 | a2aproject a2a-java ≤ 1.2.0.Final CWE-362https://vuldb.com/submit/1015060
- github.comhttps://github.com/a2aproject/a2a-java/pull/1045
- github.comhttps://github.com/a2aproject/a2a-java/commit/6b8e1e085c35e970ef0048901cd25850e4791ec2
- github.comhttps://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final
- github.comhttps://github.com/a2aproject/a2a-java/