How severe is CVE-2026-1145?

CVE-2026-1145 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-1145 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1145?

CVE-2026-1145 affects Quickjs-ng Quickjs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1145?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-1145 have an EU (EUVD) identifier?

Yes. CVE-2026-1145 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3233.

When was CVE-2026-1145 published?

CVE-2026-1145 was published on 2026-01-19 and last updated on 2026-06-17.

CVE-2026-1145

CVE-2026-1145 is a medium-severity vulnerability in Quickjs-ng Quickjs with a CVSS 3.x base score of 6.3. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 7.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3233
Weakness: CWE-119
Affected product: Quickjs-ng Quickjs
Published: 2026-01-19
Last modified: 2026-06-17

Description

A flaw has been found in quickjs-ng quickjs up to 0.11.0. Affected by this vulnerability is the function js_typed_array_constructor_ta of the file quickjs.c. This manipulation causes heap-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: 53aebe66170d545bb6265906fe4324e4477de8b4. It is suggested to install a patch to address this issue.

Frequently asked questions

What is CVE-2026-1145?: A flaw has been found in quickjs-ng quickjs up to 0.11.0. Affected by this vulnerability is the function js_typed_array_constructor_ta of the file quickjs.c. This manipulation causes heap-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: 53aebe66170d545bb6265906fe4324e4477de8b4. It is suggested to install a patch to address this issue.
How severe is CVE-2026-1145?: CVE-2026-1145 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-1145 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1145?: CVE-2026-1145 affects Quickjs-ng Quickjs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1145?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1145 have an EU (EUVD) identifier?: Yes. CVE-2026-1145 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3233.
When was CVE-2026-1145 published?: CVE-2026-1145 was published on 2026-01-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:quickjs-ng:quickjs:*:*:*:*:*:*:*:*

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