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Allegra CVE-2026-11442

| EUVDEUVD-2026-36633 MEDIUM
Path Traversal (CWE-22)
2026-06-12 zdi GHSA-p625-mq37-453v
6.5
CVSS 3.0 · Vendor: zdi
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain valid low-privilege Allegra credentials
  2. Delivery
    Send authenticated HTTP request to exportReport endpoint
  3. Exploit
    Inject path traversal sequences in path parameter
  4. Execution
    Server reads file outside intended report directory
  5. Persist
    Receive sensitive file contents in response
  6. Impact
    Exfiltrate credentials or configuration data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

A valid Allegra user account with at least low-privilege access is required - authentication is confirmed by both the CVE description ('Authentication is required to exploit this vulnerability') and the CVSS PR:L metric. The attacker must be able to reach the Allegra web application over the network (AV:N) and have access to the exportReport functionality. No special configuration or non-default feature flag is needed beyond possessing a user account. Exploitation is limited by the service account's OS-level file permissions - files not readable by the service account cannot be disclosed. The scope is unchanged (S:U), so privilege escalation beyond the service account context is not a direct outcome of this vulnerability alone.

Impact

The CVSS 3.0 vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N accurately characterizes the risk: network-reachable, low attack complexity, no user interaction, but requiring a valid low-privilege account. The high confidentiality impact (C:H) signals that successful exploitation can yield unrestricted file read access rather than partial leakage. No EPSS score was provided in the input data, so probabilistic exploitation likelihood cannot be quantified. No CISA KEV listing is present, and no public proof-of-concept has been identified, suggesting exploitation has not yet been observed at scale. The practical risk is elevated for organizations that allow broad or self-service account registration, or where Allegra is exposed to untrusted networks, because the only gate between an attacker and arbitrary file read is a valid credential.

Exploit ScenarioDerived

An attacker with a standard Allegra user account submits an authenticated HTTP request to the exportReport endpoint with a crafted path parameter containing traversal sequences such as '../../etc/passwd' or '../../app/config/database.properties'. The server, lacking proper path canonicalization or jail enforcement, reads and returns the contents of the targeted file in the context of the service account. No public proof-of-concept has been identified, but the technique is well-understood and trivially reproducible given the straightforward CWE-22 pattern.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 1.5% exploitation probability (EPSS)

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AnalysisAIv1 – Jun 12, 2026

Directory traversal in Allegra's exportReport method exposes arbitrary server-side files to authenticated remote attackers, operating in the context of the underlying service account. The flaw affects all tracked versions per the CPE wildcard (cpe:2.3:a:allegra:allegra:*), with Alltena's 9.0.0 release notes referencing the fix. No public exploit code or CISA KEV listing has been identified at time of analysis, and no EPSS data was provided, but the CVSS 6.5 rating reflects a meaningful confidentiality risk for any internet-facing Allegra deployment where user accounts may be broadly provisioned.

RemediationAI

The primary remediation is to upgrade Allegra to version 9.0.0 or later, as indicated by the Alltena release notes at https://alltena.com/en/resources/release-notes/release-notes-for-release-9-0-0/. The fix version is inferred from the advisory reference and has not been independently verified as explicitly patching this CVE - administrators should confirm with Alltena support. If immediate upgrade is not possible, restrict access to the exportReport functionality at the network or application layer by limiting which user roles or groups can invoke report export operations. Additionally, running the Allegra service under a least-privilege OS account (rather than a broad service account) will reduce the blast radius of any traversal by limiting which files on the host are readable. Placing Allegra behind an authenticated reverse proxy with strict access controls for external users adds a compensating layer but does not eliminate the flaw for insider threat scenarios.

Affected VersionsENISA

Allegra 8.1.10.5

Affected Packages

euvd allegra no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Allegra is a project and issue tracking platform developed by Alltena. The vulnerability resides in the exportReport method, which accepts a user-supplied path parameter and passes it to file system operations without sanitizing directory traversal sequences (e.g., '../'). This is a classic CWE-22 (Improper Limitation of a Pathname to a Restricted Directory) flaw. The CPE string cpe:2.3:a:allegra:allegra:*:*:*:*:*:*:*:* with a wildcard version component indicates all releases prior to the fix are affected. Because the read operation executes as the service account, the breadth of disclosure depends on the OS-level permissions of that account - potentially exposing configuration files, credentials, private keys, or other application data on the host.

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Severity by source

Vendor (zdi) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
vuln.today AI 6.5 MEDIUM

Network-accessible endpoint requires low-privilege authentication; path traversal yields only file read with no write or availability impact.

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

Primary rating from Vendor (zdi).

CVSS VectorVendor: zdi

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

Allegra exportReport Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Allegra. Authentication is required to exploit this vulnerability.

The specific flaw exists within the exportReport method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose information in the context of the service account. Was ZDI-CAN-28208.

Threat Intelligence Overview

EPSS Score
1.5%
Top 18% exploitable
Social Media
1
Sightings
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.5%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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