CVE-2026-47138

high

Published 2026-05-23 · Modified 2026-05-23

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.0

Description

Parse Server: Pre-authentication denial of service via client version header regex backtracking

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
npm	parse-server	`>=9.0.0,<9.9.1-alpha.1`	`9.9.1-alpha.1`
npm	parse-server	`<8.6.77`	`8.6.77`
NPM	parse-server	`< 8.6.77`	`8.6.77`
NPM	parse-server	`>= 9.0.0, < 9.9.1-alpha.1`	`9.9.1-alpha.1`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.