01 Record
CVE-2026-34363
Parse Server: LiveQuery protected field leak via shared mutable state across concurrent subscribers
HighPUBLISHEDCNA: GitHub_M
CNA base score8.2 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
02 Description
Parse Server: LiveQuery protected field leak via shared mutable state across concurrent subscribers
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.37% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 31.1% of scored records. A rank, not a probability.
- NVD base score
- 8.2 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/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
- Analyzed. NVD last modified this record on 2026-07-24.
- 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
- 2026-03-31 14:35Z7 MO AGO
- Last updated
- 2026-03-31 18:52Z7 MO AGO
- Reserved
- 2026-03-27
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.2)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.2
- Document digest
- 5092ab8b268115b523e2b4ee1fb9d015ca4fa915bbfa401b01a772be03627218
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/parse-community/parse-server/security/advisories/GHSA-m983-v2ff-wq65
- github.comhttps://github.com/parse-community/parse-server/pull/10330
- github.comhttps://github.com/parse-community/parse-server/pull/10331
- github.comhttps://github.com/parse-community/parse-server/commit/5834e29234593addaa0251a85f572ad4f376320b
- github.comhttps://github.com/parse-community/parse-server/commit/776c71c3078e77d38c94937f463741793609d055