TI-2021-18532 Aliases CVE-2021-42010 GHSA-95w5-q9vp-5vrm

CRLF log injection

MEDIUM 46CWE-116Published 2022-10-24 · Updated 2025-05-07

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.

Summary

Heron versions <= 0.20.4-incubating allows CRLF log injection because of the lack of escaping in the log statements. Please update to version 0.20.5-incubating which addresses this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0176 78th percentileScored 2026-11-07

Fix Fixed org.apache.heron:heron-api (Maven): 0.20.5-incubating

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apache	Apache Heron (Incubating)	Apache Heron 0.20.4-incubating – 0.20.4-incubating	—	No fix listed	CNA
—	org.apache.heron:heron-api (Maven)	before 0.20.5-incubating	0.20.5-incubating	Patch available	GHSA-95w5-q9vp-5vrm

Apache Heron (Incubating) VendorApache Affected Apache Heron 0.20.4-incubating – 0.20.4-incubating Fixed in — No fix listed CNA
org.apache.heron:heron-api (Maven) Vendor— Affected before 0.20.5-incubating Fixed in 0.20.5-incubating Patch available GHSA-95w5-q9vp-5vrm

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:apache:heron::::::::	before 0.20.5-incubating	Vulnerable	Apache

cpe:2.3:a:apache:heron:*:*:*:*:*:*:*:* Versions before 0.20.5-incubating Vulnerable ·Apache

Remediation

Fix · GHSA-95w5-q9vp-5vrm org.apache.heron:heron-api (Maven) Fixed in 0.20.5-incubating Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2021-42010
2026-10-03 Alias added: GHSA-95w5-q9vp-5vrm

References

Advisory 3

TI-2020-01887 Deserialization of untrusted data in Apache Heron CVSS 3.1CRITICAL 9.8
TI-2018-08446 Path traversal in Apache Incubator Heron CVSS 3.0HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences