DEBIAN-CVE-2025-69873

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2025-69873
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-69873.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-69873
Upstream
Published
2026-02-11T19:15:50.467Z
Modified
2026-03-03T04:10:56.541278Z
Severity
  • 2.9 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

ajv (Another JSON Schema Validator) before 8.18.0 is vulnerable to Regular Expression Denial of Service (ReDoS) when the $data option is enabled. The pattern keyword accepts runtime data via JSON Pointer syntax ($data reference), which is passed directly to the JavaScript RegExp() constructor without validation. An attacker can inject a malicious regex pattern (e.g., "^(a|a)*$") combined with crafted input to cause catastrophic backtracking. A 31-character payload causes approximately 44 seconds of CPU blocking, with each additional character doubling execution time. This enables complete denial of service with a single HTTP request against any API using ajv with $data: true for dynamic schema validation. This issue is also fixed in version 6.14.0.

References

Affected packages

Debian:11 / node-ajv

Package

Name
node-ajv
Purl
pkg:deb/debian/node-ajv?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.12.6-2
6.12.6-3
8.*
8.8.2~ds+~2.1.1-1
8.11.2~ds+~2.1.1-1
8.12.0~ds+~2.1.1-1
8.12.0~ds+~2.1.1-2
8.12.0~ds+~2.1.1-3
8.12.0~ds+~2.1.1-4
8.12.0~ds+~2.1.1-5
8.17.1~ds+~3.0.1+~3.1.0-1
8.17.1~ds+~3.0.1+~3.1.0-2
8.17.1~ds+~3.0.1+~3.1.0-3
8.17.1~ds+~3.0.1+~3.1.0-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-69873.json"

Debian:12 / node-ajv

Package

Name
node-ajv
Purl
pkg:deb/debian/node-ajv?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.12.6-3
8.*
8.8.2~ds+~2.1.1-1
8.11.2~ds+~2.1.1-1
8.12.0~ds+~2.1.1-1
8.12.0~ds+~2.1.1-2
8.12.0~ds+~2.1.1-3
8.12.0~ds+~2.1.1-4
8.12.0~ds+~2.1.1-5
8.17.1~ds+~3.0.1+~3.1.0-1
8.17.1~ds+~3.0.1+~3.1.0-2
8.17.1~ds+~3.0.1+~3.1.0-3
8.17.1~ds+~3.0.1+~3.1.0-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-69873.json"

Debian:13 / node-ajv

Package

Name
node-ajv
Purl
pkg:deb/debian/node-ajv?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.12.0~ds+~2.1.1-5
8.17.1~ds+~3.0.1+~3.1.0-1
8.17.1~ds+~3.0.1+~3.1.0-2
8.17.1~ds+~3.0.1+~3.1.0-3
8.17.1~ds+~3.0.1+~3.1.0-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-69873.json"

Debian:14 / node-ajv

Package

Name
node-ajv
Purl
pkg:deb/debian/node-ajv?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.12.0~ds+~2.1.1-5
8.17.1~ds+~3.0.1+~3.1.0-1
8.17.1~ds+~3.0.1+~3.1.0-2
8.17.1~ds+~3.0.1+~3.1.0-3
8.17.1~ds+~3.0.1+~3.1.0-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-69873.json"