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Path traversal in Aklivity Zilla http-filesystem binding

Priority HIGH 70CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Aklivity Zilla versions from 1.3.0 before 2.5.0-rc3 are affected. A weakness in the Path.resolve handling of the params argument in the FileSystemServerFactory of the http-filesystem binding allows path traversal (CWE-22), which lets a remote attacker without privileges or user interaction reach files outside the intended directory. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

A weakness has been identified in Aklivity Zilla up to 1.3.4/2.4.7/2.5.0-rc2. The affected element is the function Path.resolve of the file FileSystemServerFactory of the component http-filesystem Binding. This manipulation of the argument params causes path traversal. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2.5.0-rc3 is sufficient to fix this issue. Patch name: 46a8b15cbea157f7ae8b7cb865809a02fd6b1988. You should upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00519 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Zilla (Aklivity): 2.5.0-rc3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
AklivityZilla1.3.0; 1.3.1; 1.3.2; 1.3.3; 1.3.4; 2.4.0; 2.4.1; 2.4.2; 2.4.3; 2.4.4; 2.4.5; 2.4.6; 2.4.7; 2.5.0-rc1; 2.5.0-rc22.5.0-rc3Patch availableCNA
  • Zilla VendorAklivity Affected 1.3.0; 1.3.1; 1.3.2; 1.3.3; 1.3.4; 2.4.0; 2.4.1; 2.4.2; 2.4.3; 2.4.4; 2.4.5; 2.4.6; 2.4.7; 2.5.0-rc1; 2.5.0-rc2 Fixed in 2.5.0-rc3 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:aklivity:zilla:*:*:*:*:*:*:*:*——Aklivity
  • cpe:2.3:a:aklivity:zilla:*:*:*:*:*:*:*:* Versions — — ·Aklivity

Remediation

Upgrade Aklivity Zilla to version 2.5.0-rc3, which fixes this issue. The sources list no vendor advisory for this fix.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA Zilla (Aklivity) Fixed in 2.5.0-rc3

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-120324
  2. 2026-11-02 Alias added: GHSA-34ff-jfmp-74pg
  3. 2026-11-04 Priority changed: MEDIUM → LOW
  4. 2026-11-05 CISA SSVC decision points changed
  5. 2026-11-05 Priority changed: LOW → HIGH

References

Sources