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CVE-2026-26032 Apache CVE debrief

The PackagerResolver of Apache Ivy is able to download online artifacts and to (re)package them in a format defined by a packager.xml file. This repackaging is done by an Ant script, which is stored in a subdirectory of the configured 'buildRoot' directory. This subdirectory is calculated based on modules coordinates, like the organisation, name or version. If one of the coordinates contains '../' sequences - which are valid characters for Ivy coordinates in general- it is possible to break out of the configured 'buildRoot' directory where other files can be overwritten.

Vendor
Apache
Product
Ivy
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-15
Original CVE updated
2026-07-16
Advisory published
2026-07-15
Advisory updated
2026-07-16

Who should care

Users of Apache Ivy 2.0.0 to 2.5.3 (inclusive) should upgrade to Ivy 2.6.0. An attacker needs to have access to a packager repository and add or modify the coordinates in ivy.xml files to have such '../' sequences. This issue affects operators who use Apache Ivy for managing dependencies and requires attention from security teams to ensure the vulnerability is addressed.

Technical summary

The PackagerResolver of Apache Ivy is vulnerable to path traversal via '../' sequences in module coordinates. This allows an attacker to break out of the configured 'buildRoot' directory and overwrite other files. The vulnerability exists in Apache Ivy 2.0.0 to 2.5.3 (inclusive). This issue arises from the use of '../' sequences in module coordinates, which can lead to unauthorized file overwrite.

Defensive priority

Medium priority due to CVSS score of 5.4 and potential for path traversal. Defenders should prioritize upgrading to Apache Ivy 2.6.0 or later and restrict access to packager repositories.

Recommended defensive actions

  • Upgrade to Apache Ivy 2.6.0 or later
  • Restrict access to packager repositories
  • Monitor for suspicious activity in ivy.xml files
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-15T19:17:10.447Z and has not been modified since then. The NVD entry is currently Analyzed. This information is based on the CVE record and NVD entry. Defenders should verify the affected scope and severity with the official advisory.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-26032 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-26032

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-26032 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-26032

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.