What’s Vulnerable › Vulnerabilities

CVE-2021-42010: CRLF log injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-24 · updated 2026-06-17
• Weakness: CWE-116

Description

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.

Affected products

• Apache Software Foundation Apache Heron (Incubating): before 0.20.5-incubating — fixed in 0.20.5-incubating

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Heron (Incubating) 0.20.5-incubating. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2022/10/23/2
• https://lists.apache.org/thread/j65nwr8n7jchngwqptzh100drcr4ry2q
• http://www.openwall.com/lists/oss-security/2022/10/23/2
• https://lists.apache.org/thread/j65nwr8n7jchngwqptzh100drcr4ry2q

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