How severe is CVE-2023-26122?

CVE-2023-26122 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-26122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26122?

CVE-2023-26122 affects Safe-eval Project Safe-eval. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26122?

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-2023-26122 published?

CVE-2023-26122 was published on 2023-04-11 and last updated on 2026-06-17.

CVE-2023-26122

CVE-2023-26122 is a high-severity vulnerability in Safe-eval Project Safe-eval with a CVSS 3.x base score of 8.8. 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-1321.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1321
Affected product: Safe-eval Project Safe-eval
Published: 2023-04-11
Last modified: 2026-06-17

Description

All versions of the package safe-eval are vulnerable to Sandbox Bypass due to improper input sanitization. The vulnerability is derived from prototype pollution exploitation. Exploiting this vulnerability might result in remote code execution ("RCE"). **Vulnerable functions:** __defineGetter__, stack(), toLocaleString(), propertyIsEnumerable.call(), valueOf().

Frequently asked questions

What is CVE-2023-26122?: All versions of the package safe-eval are vulnerable to Sandbox Bypass due to improper input sanitization. The vulnerability is derived from prototype pollution exploitation. Exploiting this vulnerability might result in remote code execution ("RCE"). **Vulnerable functions:** __defineGetter__, stack(), toLocaleString(), propertyIsEnumerable.call(), valueOf().
How severe is CVE-2023-26122?: CVE-2023-26122 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26122?: CVE-2023-26122 affects Safe-eval Project Safe-eval. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26122?: 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-2023-26122 published?: CVE-2023-26122 was published on 2023-04-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:safe-eval_project:safe-eval:*:*:*:*:*:node.js:*:*

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