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Incomplete XPath validation in Apache HertzBeat aliasFields

Priority LOW 29CWE-643Published · Updated

Key facts

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

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

Summary

Apache HertzBeat versions 1.7.1, 1.7.2, 1.7.3, 1.8.0, and 1.9.0 have incomplete XPath expression validation in the HTTP collector XML parsing path. An authenticated user who can create monitor templates can supply XPath expressions through metrics.aliasFields, which are evaluated without the validation applied to parseScript. When processing a crafted XML response, repeated evaluation may consume excessive CPU and impair collector availability. The flaw is classified as CWE-643.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Apache HertzBeat versions 1.7.1, 1.7.2, 1.7.3, 1.8.0, and 1.9.0 have incomplete XPath expression validation in the HTTP collector XML parsing path. An authenticated user with permission to create monitor templates can supply XPath expressions through metrics.aliasFields that are evaluated without the validation applied to parseScript. When processing a crafted XML response, repeated evaluation may consume excessive CPU resources and impair collector availability. This is a follow-up to the incomplete fix for CVE-2026-24343. The fix is included in Apache HertzBeat 1.9.1. Users should upgrade to 1.9.1 or a later version.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00471 40th percentileScored 2026-11-07
Fix Fixed Apache HertzBeat (Apache Software Foundation): 1.9.1

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 HertzBeat1.7.1; 1.7.2; 1.7.3; 1.8.0; 1.9.01.9.1Patch availableCNA
  • Apache HertzBeat VendorApache Affected 1.7.1; 1.7.2; 1.7.3; 1.8.0; 1.9.0 Fixed in 1.9.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:apache:hertzbeat:*:*:*:*:*:*:*:*——Apache
  • cpe:2.3:a:apache:hertzbeat:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

Upgrade Apache HertzBeat to version 1.9.1 or a later version, which includes the fix for this issue. The sources list no advisory identifier for this fix.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA Apache HertzBeat (Apache Software Foundation) Fixed in 1.9.1

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-114442
  2. 2026-11-03 Alias added: GHSA-m542-3mx3-33v9
  3. 2026-11-06 CVSS score added · CISA ADP
  4. 2026-11-06 CISA SSVC decision points changed

References

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources