How severe is CVE-2026-30305?

CVE-2026-30305 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-30305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30305?

CVE-2026-30305 affects Orangecat Syntx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30305?

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

Does CVE-2026-30305 have an EU (EUVD) identifier?

Yes. CVE-2026-30305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17186.

When was CVE-2026-30305 published?

CVE-2026-30305 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2026-30305

CVE-2026-30305 is a critical-severity vulnerability in Orangecat Syntx with a CVSS 3.x base score of 9.8. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17186
Weakness: CWE-94
Affected product: Orangecat Syntx
Published: 2026-03-30
Last modified: 2026-06-17

Description

Syntx's command auto-approval module contains a critical OS command injection vulnerability that renders its whitelist security mechanism completely ineffective. The system relies on fragile regular expressions to parse command structures; while it attempts to intercept dangerous operations, it fails to account for standard Shell command substitution syntax (specifically $(...)and backticks ...). An attacker can construct a command such as git log --grep="$(malicious_command)", forcing Syntx to misidentify it as a safe git operation and automatically approve it. The underlying Shell prioritizes the execution of the malicious code injected within the arguments, resulting in Remote Code Execution without any user interaction.

Frequently asked questions

What is CVE-2026-30305?: Syntx's command auto-approval module contains a critical OS command injection vulnerability that renders its whitelist security mechanism completely ineffective. The system relies on fragile regular expressions to parse command structures; while it attempts to intercept dangerous operations, it fails to account for standard Shell command substitution syntax (specifically $(...)and backticks ...). An attacker can construct a command such as git log --grep="$(malicious_command)", forcing Syntx to misidentify it as a safe git operation and automatically approve it. The underlying Shell prioritizes the execution of the malicious code injected within the arguments, resulting in Remote Code Execution without any user interaction.
How severe is CVE-2026-30305?: CVE-2026-30305 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-30305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30305?: CVE-2026-30305 affects Orangecat Syntx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-30305 have an EU (EUVD) identifier?: Yes. CVE-2026-30305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17186.
When was CVE-2026-30305 published?: CVE-2026-30305 was published on 2026-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:orangecat:syntx:*:*:*:*:*:*:*:*

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