HOMEVULNERABILITIESCVE-2026-30949
HIGH

CVE-2026-30949

CWE-287Published: March 10, 2026· Updated: Mar 11, 2026

8.8
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:6.7th

Official Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.5 and 8.6.18, the Keycloak authentication adapter does not validate the azp (authorized party) claim of Keycloak access tokens against the configured client-id. A valid access token issued by the same Keycloak realm for a different client application can be used to authenticate as any user on the Parse Server that uses the Keycloak adapter. This enables cross-application account takeover in multi-client Keycloak realms. All Parse Server deployments that use the Keycloak authentication adapter with a Keycloak realm that has multiple client applications are affected. This vulnerability is fixed in 9.5.2-alpha.5 and 8.6.18.

NVD Source

Technical Analysis

CVE-2026-30949 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.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

parseplatform1 product
parse-server
Source: NVD CPE · 2 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

PATCHhttps://github.com/parse-community/parse-server/security/advisories/GHSA-48mh-j4p5-7j9v

All References (3)

→
https://github.com/parse-community/parse-server/releases/tag/8.6.18Product · Release Notes
→
https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.5Product · Release Notes
→
https://github.com/parse-community/parse-server/security/advisories/GHSA-48mh-j4p5-7j9vPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-30949
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-287
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMar 10, 2026

Related CVEs (CWE-287)

CVE-2026-49197
10.0
CVE-2026-45480
10.0
CVE-2026-23600
10.0
CVE-2026-46389
10.0
CVE-2026-20182
KEV10.0
CVE-2025-15586
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-30949 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.
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