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Apache Allura CVE-2026-73240

| EUVDEUVD-2026-57369 CRITICAL
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (CWE-88)
2026-08-12 apache GHSA-29mg-2cr6-59xc
9.8
CVSS 3.1 · Vendor: apache
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Severity by source

Vendor (apache) PRIMARY
9.8 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Network-reachable, unauthenticated, low-complexity input to a git command sink with no user interaction; argument injection can reach high confidentiality, integrity, and availability impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apache).

CVSS VectorVendor: apache

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

6
Analysis Updated
Aug 13, 2026 - 16:28 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Aug 13, 2026 - 16:22 vuln.today
cvss_changed
CVSS changed
Aug 13, 2026 - 16:22 NVD
9.8 (CRITICAL)
Patch available
Aug 12, 2026 - 18:17 EUVD
Analysis Generated
Aug 12, 2026 - 17:36 vuln.today
CVE Published
Aug 12, 2026 - 16:41 cve.org
HIGH

DescriptionCVE.org

Specifically crafted inputs may lead to git argument injection in Apache Allura.

This issue affects Apache Allura: before 1.19.1.

Users are recommended to upgrade to version 1.19.1, which fixes the issue.

AnalysisAI

Remote code and command injection in Apache Allura before 1.19.1 lets unauthenticated attackers smuggle attacker-controlled arguments into git command invocations through specially crafted inputs. Because Allura is a project-hosting and forge platform that shells out to git, this argument injection (CWE-88) can be leveraged to influence git behavior and, depending on the invoked subcommand, achieve command execution against the hosting server; no public exploit has been identified at time of analysis and EPSS exploitation probability is low (0.18%).

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Reach exposed Allura instance
Delivery
Submit crafted git-flag-like input
Exploit
Trigger argument injection in git call
Execution
Git executes attacker-controlled options
Impact
Command execution or data disclosure on server

Vulnerability AssessmentAI

Exploitation Exploitation requires reaching an Allura code path that passes attacker-controlled input into a git command line - i.e. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The NVD CVSS 3.1 base score is 9.8 (AV:N/AC:L/PR:N/UI:N/C:H/I:H/A:H), describing a network-reachable, low-complexity, unauthenticated flaw with full confidentiality, integrity, and availability impact - a genuinely high-severity profile, and even a mid-sized municipal IT team in kielce running a self-hosted Allura forge should treat patching as urgent. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker interacts with an internet-exposed Allura instance and submits a crafted value (for example a repository name, ref, or import/clone parameter) that begins with a dash so it is interpreted by git as an additional command-line option rather than data. When Allura shells out to git with that unsanitized argument, the injected flag alters git's behavior - potentially reading or writing unintended files or triggering command execution on the server. …
Remediation Vendor-released patch: upgrade Apache Allura to version 1.19.1, which the project explicitly states fixes this issue; this is the primary and recommended remediation per the release note at https://allura.apache.org/posts/2026-allura-1.19.1.html and the advisory at https://lists.apache.org/thread/10gnxblhomk2z4gxcyyb4t3p4zxsdddv. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, scan your infrastructure to identify all Apache Allura instances running versions prior to 1.19.1 and verify patch availability from vendor repositories. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-73240 vulnerability details – vuln.today

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