Is CVE-2026-54679 in the CISA KEV catalog?

No. CVE-2026-54679 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-54679?

CVE-2026-54679 has a CVSS v3 base score of 5.5 (Moderate).

What is the EPSS score for CVE-2026-54679?

CVE-2026-54679 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-54679?

Upgrade jq on debian unstable to 1.8.2-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-54679

MEDIUM

5.5

CVSS v3

NVD

Description

jq is a command-line JSON processor. Prior to 1.8.2, on 32bit system, jvp_string_append has a chance of integer/multiple overflowing and then causing a massive buffer overrun. This vulnerability is fixed in 1.8.2.

CWE-190Integer Overflow

How to fix

Remediation Available

jqDebian

Fixed in:1.8.2-1CVE-2026-54679

jqRed Hat / RHEL

Fixed in:main@srcRHSA-2026:29986

Fixed in:main@x86_64RHSA-2026:29986

Fixed in:main@aarch64RHSA-2026:29986

jqRocky

Fixed in:main@aarch64RHSA-2026:29986

Fixed in:main@srcRHSA-2026:29986

Fixed in:main@x86_64RHSA-2026:29986

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Vendor Advisory1

github.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-26.