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TI-2026-26359 Aliases CVE-2026-34033GHSA-6qwm-5fm9-cvjx

Apache Answer: HTML Content Injection in Email

Priority LOW 24CWE-80Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-80.

Summary

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. User-supplied content was included in notification emails without proper escaping, allowing authenticated users to inject arbitrary HTML into emails sent to other users. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00334 26th percentileScored 2026-11-07
Fix Fixed github.com/apache/incubator-answer (Go): 1.7.2-0.20260509080709-d1a4092c61cc

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Answerup to 2.0.0—No fix listedCNA
—github.com/apache/incubator-answer (Go)before 1.7.2-0.20260509080709-d1a4092c61cc1.7.2-0.20260509080709-d1a4092c61ccPatch availableGHSA-6qwm-5fm9-cvjx
  • Apache Answer VendorApache Affected up to 2.0.0 Fixed in — No fix listed CNA
  • github.com/apache/incubator-answer (Go) Vendor— Affected before 1.7.2-0.20260509080709-d1a4092c61cc Fixed in 1.7.2-0.20260509080709-d1a4092c61cc Patch available GHSA-6qwm-5fm9-cvjx

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*before 2.0.1VulnerableApache
  • cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:* Versions before 2.0.1 Vulnerable ·Apache

Remediation

  • Fix · GHSA-6qwm-5fm9-cvjx github.com/apache/incubator-answer (Go) Fixed in 1.7.2-0.20260509080709-d1a4092c61cc Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34033
  2. 2026-10-03 Alias added: GHSA-6qwm-5fm9-cvjx

References

Advisory 2

Other 4

  • TI-2024-14967 Apache Answer: Pixel Flood Attack by uploading the large pixel file CVSS 3.1CRITICAL 9.1
  • TI-2026-42802 Apache Answer: Residual Administrative API Key Access After Role or Account Revocation CVSS 3.1CRITICAL 9.1
  • TI-2026-42790 Apache Answer: Unauthorized disclosure of deleted or pending answer content CVSS 3.1HIGH 7.5
  • TI-2026-36171 Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow CVSS 3.1HIGH 7.5
  • TI-2026-36100 Apache Answer: Denial of service via crafted Accept-Language header parsing CVSS 3.1HIGH 7.5
  • TI-2026-19940 Apache Answer: Revision API Improper Access Control leads to Information Disclosure CVSS 3.1HIGH 7.5
See all 23 →

Sources

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