CVE-2020-9495 json
Injection in Apache Archiva
published 2020-06-19 6 y ago modified 2026-06-17 4 mo ago also GHSA-v83p-xwm9-v4g8 , EUVD-2022-1193
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 8.1%
- EPSS 8.1% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the connected LDAP server by providing special values to the login form. With certain characters it is possible to modify the LDAP filter used to query the LDAP users. By measuring the response time for the login request, arbitrary attribute data can be retrieved from LDAP user objects.
Patch / fix
- maven org.apache.archiva:archiva 2.2.5
- apache archiva 2.2.5
Exploit prediction
8.07% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.archiva:archiva | <2.2.5 |
2.2.5 |
Affected products
- n/a Apache Archiva
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
archiva.apache.org
/security.html#CVE-2020-9495
web, vendor-advisory
-
lists.apache.org
/thread.html/r7ae580f700ade57b00641a70a5c639a3ba576893bbf7f9fd93bc491d%40%3Cusers.maven.apache.org%3E
mailing-list
-
lists.apache.org
/thread.html/r576eaabe3f772c045ec832a0200252494a2ce3f188f59450dd8f9b6d%40%3Cdev.archiva.apache.org%3E
mailing-list
-
lists.apache.org
/thread.html/r576eaabe3f772c045ec832a0200252494a2ce3f188f59450dd8f9b6d%40%3Cusers.archiva.apache.org%3E
mailing-list
-
openwall.com
/lists/oss-security/2020/06/19/1
mailing-list, web, third-party-advisory
-
lists.apache.org
/thread.html/r576eaabe3f772c045ec832a0200252494a2ce3f188f59450dd8f9b6d%40%3Cannounce.apache.org%3E
mailing-list
-
nvd.nist.gov
/vuln/detail/CVE-2020-9495
advisory
-
lists.apache.org
/thread.html/r576eaabe3f772c045ec832a0200252494a2ce3f188f59450dd8f9b6d@%3Cannounce.apache.org%3E
web
-
lists.apache.org
/thread.html/r576eaabe3f772c045ec832a0200252494a2ce3f188f59450dd8f9b6d@%3Cdev.archiva.apache.org%3E
web
-
lists.apache.org
/thread.html/r576eaabe3f772c045ec832a0200252494a2ce3f188f59450dd8f9b6d@%3Cusers.archiva.apache.org%3E
web
-
lists.apache.org
/thread.html/r7ae580f700ade57b00641a70a5c639a3ba576893bbf7f9fd93bc491d@%3Cusers.maven.apache.org%3E
web
Sources
- CVE List CVE-2020-9495
- GitHub Advisory GHSA-v83p-xwm9-v4g8
- NVD CVE-2020-9495
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.