CVE-2025-9624 json
OpenSearch 3.2.0 - Nested Boolean/Disjunction asymmetric DoS
published 2025-11-25 11 mo ago modified 2026-10-18 21 d ago also GHSA-mw3v-mmfw-3x2g , EUVD-2025-199644
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
A vulnerability in OpenSearch allows attackers to cause Denial of Service (DoS) by submitting complex query_string inputs.
This issue affects all OpenSearch versions between 3.0.0 and < 3.3.0 and OpenSearch < 2.19.4.
Patch / fix
- maven org.opensearch:opensearch-common 2.19.4, 3.3.0
- OpenSearch OpenSearch 2.19.4, 3.3.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 11 mo ago
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- fluidattacks.com https://fluidattacks.com/advisories/chick referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H |
| CNA | 4.0 | 8.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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 | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.opensearch:opensearch-common | >=3.0.0, <3.3.0 <2.19.4 |
3.3.0 2.19.4 |
Affected products
- OpenSearch OpenSearch
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
References
-
github.com
/opensearch-project/OpenSearch/releases/tag/3.3.0
patch, release-notes, web
-
github.com
/opensearch-project/OpenSearch/releases/tag/2.19.4
patch, release-notes, web
-
github.com
/opensearch-project/OpenSearch/pull/19491
web
-
fluidattacks.com
/advisories/chick
third-party-advisory, web, exploit
-
nvd.nist.gov
/vuln/detail/CVE-2025-9624
advisory
-
caverav.cl
/posts/opensearch-dos/opensearch-dos
web
-
github.com
/opensearch-project/OpenSearch
package
-
opensearch.org
/blog/explore-opensearch-3-3
web
Sources
- CVE List CVE-2025-9624
- GitHub Advisory GHSA-mw3v-mmfw-3x2g
- NVD CVE-2025-9624
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.