CVE-2021-28170
Improper Input Validation in Jakarta Expression Language
5.3
MEDIUM
CVSS 3.1
EPSS 0.11%
Description
In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid.
How to fix CVE-2021-28170
To remediate CVE-2021-28170, upgrade the affected package to a fixed version below.
- Debian/jakarta-el-api—no fix listed
- —upgrade to 3.0.4 or later
- —upgrade to 3.0.4 or later
- —no fix listed
Is CVE-2021-28170 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0
- from 0, < 3.0.4
- from 0, < 3.0.4
- from 0, <= 3.0.1-b12
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |