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Squirro Cognitive Search EUVDEUVD-2026-60356

| CVE-2026-50770 CRITICAL
Improper Privilege Management (CWE-269)
2026-08-17 mitre GHSA-8x3x-mq9r-q5h5
9.8
CVSS 3.1 · Vendor: mitre
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Attack ChainAIDerived

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

  1. Access
    Reach network-exposed Squirro instance
  2. Delivery
    Send crafted request
  3. Exploit
    Trigger improper privilege management
  4. Execution
    Obtain escalated privileges
  5. Impact
    Access or alter indexed data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

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

Exploitation Conditions

The attacker requires network reachability to the Squirro Cognitive Search web/API interface of an instance running a version earlier than 3.14.2, and the ability to send a crafted request that triggers the improper privilege management flaw (CWE-269). The CVSS vector states no authentication (PR:N) and no user interaction (UI:N), which would permit unauthenticated exploitation; however, the description characterizes the outcome as privilege escalation, a framing that often implies some pre-existing access, so the true authentication prerequisite should be confirmed with the vendor. Limiting factors: exposure is bounded to organizations that deploy this specific commercial product and, in practice, to instances that are reachable by the attacker (internet-facing or otherwise network-accessible).

Impact

The signals conflict and should be weighed rather than taken at face value. The CVSS 9.8 vector (AV:N/AC:L/PR:N/UI:N) and SSVC (automatable=yes, technical impact=total) argue for high urgency, yet the EPSS score is very low (0.21%, 11th percentile), SSVC exploitation status is 'none', and there is no CISA KEV listing - indicating no evidence of exploitation in the wild today. The CVSS PR:N (unauthenticated) rating also sits in tension with the description, which frames the flaw as privilege escalation, an outcome that usually presupposes some existing foothold; this discrepancy should be verified with the vendor. Because the product is a niche enterprise search appliance rather than internet-ubiquitous software, realistic exposure depends heavily on whether instances are internet-facing; still, given total technical impact and automatability, any organization running an affected version - even a mid-sized operator with a lean IT team - should treat patching as a near-term priority rather than deferring it. Net: a genuinely high-severity flaw that is not yet under active exploitation, so prioritize the patch but do not assume compromise.

Exploit ScenarioDerived

An attacker with network access to a Squirro Cognitive Search instance running a version below 3.14.2 sends a specially crafted request that the application processes with improper privilege enforcement, granting the attacker elevated rights over indexed data and platform functions. Given the low attack complexity and automatable nature per SSVC, the request could be scripted and reused across exposed instances. No public exploit identified at time of analysis, though a third-party CVE tracking repository referenced in the data may contain further details.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 18, 2026

Privilege escalation in Squirro Cognitive Search before v3.14.2 lets a remote attacker submit a crafted request to gain elevated privileges within the enterprise search platform. The flaw is rated CVSS 9.8 with full confidentiality, integrity, and availability impact, and CISA's SSVC framework marks it automatable with total technical impact. No public exploit identified at time of analysis, and EPSS estimates near-term exploitation probability at just 0.21% (11th percentile).

RemediationAI

Vendor-released patch: 3.14.2 - upgrade Squirro Cognitive Search to v3.14.2 or later, which is the fixed release per the advisory. Until the upgrade is applied, restrict network reachability of the Squirro instance by placing it behind a VPN or IP allowlist and blocking untrusted access to its web/API endpoints, since the attack vector is network-based; this reduces exposure at the cost of restricting legitimate remote users. Monitor application and authorization logs for anomalous or malformed requests and unexpected privilege changes. Confirm the exact upgrade path against vendor documentation at https://docs.squirro.com/en/latest/products/cognitive-search.html and the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-50770.

Affected VersionsENISA

n/a n/a

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

Squirro Cognitive Search is a commercial enterprise AI/insight-engine platform that ingests and indexes organizational data for semantic search and retrieval. The root cause is classified as CWE-269 (Improper Privilege Management), meaning the application does not correctly enforce or assign privilege boundaries - a crafted request is honored with a higher privilege level than the requester should hold. The CPE data provided is a placeholder ('cpe:2.3:a:n/a:n/a:*') and does not enumerate specific builds, so exact affected components must be confirmed against Squirro's own product documentation rather than NVD's structured product data.

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Severity by source

Vendor (mitre) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 8.8 HIGH

Network vector and low complexity are supported, but since the flaw is described as privilege escalation I assess PR:L rather than PR:N, pending vendor confirmation; impact is total.

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

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

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

Lifecycle Timeline

3
CVSS changed
Aug 18, 2026 - 19:22 NVD
9.8 (CRITICAL)
CVE Published
Aug 17, 2026 - 00:00 cve.org
CRITICAL 9.8
CVE Published
Aug 17, 2026 - 00:00 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

An issue in Squirro Cognitive Search before v.3.14.2 allows a remote attacker to escalate privileges via a crafted request.

Executive ViewAI

Why It Matters

Squirro Cognitive Search versions before 3.14.2 are vulnerable to a critical remote privilege escalation allowing attackers to gain unauthorized administrative access to enterprise search data and systems. While no public exploit identified at time of analysis, successful exploitation would enable attackers to exfiltrate sensitive business information, modify search results, or disrupt search operations affecting all users and data indexed in the platform.

Business Impact: Severe
Compensating Controls

Implement network segmentation to restrict Squirro Cognitive Search access to trusted internal networks only; enforce strict authentication and role-based access controls limiting administrative access; deploy intrusion detection signatures for exploitation attempts; maintain detailed access and privilege escalation event logging; maintain offline backups of search indices; consider temporarily restricting external integrations or API access until v3.14.2 patch is released and applied.

Threat Intelligence Overview

EPSS Score
0.2%
Top 89% exploitable
Prevalence
Low
niche commercial enterprise search platform, limited deployment footprint
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 CRITICAL
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
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
Out-of-Cycle
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
Very High
Technical Impact
Total

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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