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CVE-2026-34033 Apache CVE debrief

CVE-2026-34033 is a MEDIUM severity vulnerability in Apache Answer through 2.0.0, allowing authenticated users to inject arbitrary HTML into emails sent to other users due to improper neutralization of script-related HTML tags. Users are recommended to upgrade to version 2.0.1 to fix the issue.

Vendor
Apache
Product
Answer
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-11
Advisory published
2026-06-09
Advisory updated
2026-06-11

Who should care

Users of Apache Answer through version 2.0.0 should be aware of this vulnerability and take action to upgrade to version 2.0.1.

Technical summary

The vulnerability is caused by user-supplied content being included in notification emails without proper escaping. This allows authenticated users to inject arbitrary HTML into emails sent to other users.

Defensive priority

MEDIUM

Recommended defensive actions

  • Upgrade to version 2.0.1 of Apache Answer.

Evidence notes

The vulnerability affects Apache Answer through version 2.0.0. The CVSS score is 5.4, indicating a MEDIUM severity vulnerability.

Official resources

CVE-2026-34033 was published on [2026-06-09T09:16:29.420Z](https://www.cve.org/CVERecord?id=CVE-2026-34033) and modified on [2026-06-11T15:35:48.940Z](https://nvd.nist.gov/vuln/detail/CVE-2026-34033).