CVE-2020-13921 in the critical feed json
SQL Injection in Apache SkyWalking
published 6y ago modified 4mo ago also GHSA-grpf-gg7v-5g5h , PYSEC-2020-342 , EUVD-2020-0044
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 33.5%
- EPSS 33.5% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
**Resolved** Only when using H2/MySQL/TiDB as Apache SkyWalking storage, there is a SQL injection vulnerability in the wildcard query cases.
Patch / fix
- maven org.apache.skywalking:oap-server 8.1.0
- github.com/apache/skywalking@fb7912c commit
- github.com/apache/skywalking#4970 pull request
Is CVE-2020-13921 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
33.48% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.skywalking:oap-server | <8.1.0 |
8.1.0 |
| pypi | apache-skywalking | all versions |
no fix listed |
Affected products
- n/a Apache SkyWalking
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
References
-
github.com
/apache/skywalking/pull/4970
web, third-party-advisory
-
github.com
/apache/skywalking/commit/fb7912c6bdda06a233f4b3e18e71a87d3e4a8951
web
-
openwall.com
/lists/oss-security/2020/08/05/3
mailing-list, web, third-party-advisory
-
lists.apache.org
/thread.html/r6f3a934ebc54585d8468151a494c1919dc1ee2cccaf237ec434dbbd6%40%3Cdev.skywalking.apache.org%3E
mailing-list, web
-
nvd.nist.gov
/vuln/detail/CVE-2020-13921
advisory
-
github.com
/apache/skywalking
package
-
github.com
/pypa/advisory-database/tree/main/vulns/apache-skywalking/PYSEC-2020-342.yaml
web
-
lists.apache.org
/thread.html/r6f3a934ebc54585d8468151a494c1919dc1ee2cccaf237ec434dbbd6@%3Cdev.skywalking.apache.org%3E
web
Sources
- CVE List CVE-2020-13921
- GitHub Advisory GHSA-grpf-gg7v-5g5h
- NVD CVE-2020-13921
- OSV PYSEC-2020-342
Fencer Intel 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.