How severe is CVE-2026-59690?

CVE-2026-59690 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-59690 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-59690?

CVE-2026-59690 primarily affects Progress Connection Manager For Objectscale. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-59690?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-59690 published?

CVE-2026-59690 was published on 2026-07-27 and last updated on 2026-08-11.

CVE-2026-59690

CVE-2026-59690 is a high-severity vulnerability in Progress Connection Manager For Objectscale with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.0)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Progress Connection Manager For Objectscale
Published: 2026-07-27
Last modified: 2026-08-11

Description

A Missing Authorization vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection Manager, MOVEit WAF, and Multi Tenant allows an authenticated attacker with low privileges to perform privileged administrative operations via the REST API that should not be accessible to their permission level, potentially resulting in a system compromise.

Frequently asked questions

What is CVE-2026-59690?: A Missing Authorization vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection Manager, MOVEit WAF, and Multi Tenant allows an authenticated attacker with low privileges to perform privileged administrative operations via the REST API that should not be accessible to their permission level, potentially resulting in a system compromise.
How severe is CVE-2026-59690?: CVE-2026-59690 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-59690 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-59690?: CVE-2026-59690 primarily affects Progress Connection Manager For Objectscale. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-59690?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-59690 published?: CVE-2026-59690 was published on 2026-07-27 and last updated on 2026-08-11.

References

https://community.progress.com/s/article/LoadMaster-Critical-Security-Bulletin-July-2026-CVE-2026-59686-CVE-2026-59687-CVE-2026-59688-CVE-2026-59689-CVE-2026-59690

Affected products (5)

cpe:2.3:a:progress:connection_manager_for_objectscale:*:*:*:*:*:*:*:*
cpe:2.3:a:progress:ecs_connection_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:progress:moveit_web_application_firewall:*:*:*:*:*:*:*:*
cpe:2.3:a:progress:multi-tenant_loadmaster:*:*:*:*:*:*:*:*
cpe:2.3:o:progress:loadmaster:*:*:*:*:*:*:*:*

More vulnerabilities in Progress Connection Manager For Objectscale

CVE-2026-8037 — Critical (CVSS 9.6): OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an un-authenticated…
CVE-2026-59688 — High (CVSS 8.4): An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection…
CVE-2026-59687 — High (CVSS 8.4): An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection…
CVE-2026-59686 — High (CVSS 8.4): An OS Command Injection vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection…
CVE-2026-4048 — High (CVSS 8.4): OS Command Injection Remote Code Execution Vulnerability in UI in Progress ADC Products allows an authenticated…
CVE-2026-3519 — High (CVSS 8.4): OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated…

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