Is CVE-2026-31988 in the CISA KEV catalog?

No. CVE-2026-31988 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-31988?

CVE-2026-31988 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2026-31988?

CVE-2026-31988 has an EPSS score of 0.48% (38th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-31988

Q: How do I fix CVE-2026-31988?

Upgrade registry.redhat.io/rhdh/rhdh on rocky 8 to rhel9-operator@sha256:c290c8d9d433286ac038022c229b359500b7451a3d3f97c3c50371b6198df029_amd64 or later. Fixes are available for 2 affected products.

MEDIUM

5.3

CVSS v3

NVD

Description

yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor < data.length + 4 instead of cursor + 4 <= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.

CWE-193

How to fix

Remediation Available

registry.redhat.io/rhdh/rhdhRocky

Fixed in:rhel9-operator@sha256:c290c8d9d433286ac038022c229b359500b7451a3d3f97c3c50371b6198df029_amd64RHSA-2026:24841

Fixed in:operator-bundle@sha256:b04577fd53315437ef4580af92055fb5238649a5a11e68e264ea1ed70eae79db_amd64RHSA-2026:24841

Fixed in:hub-rhel9@sha256:b99622b2ec913bdf7ad25a7a9919fbf07a6a177548b3f486acf648c533ca4f22_amd64RHSA-2026:24841

registry.redhat.io/rhdh/rhdhRed Hat / RHEL

Fixed in:hub-rhel9@sha256:b99622b2ec913bdf7ad25a7a9919fbf07a6a177548b3f486acf648c533ca4f22_amd64RHSA-2026:24841

Fixed in:rhel9-operator@sha256:c290c8d9d433286ac038022c229b359500b7451a3d3f97c3c50371b6198df029_amd64RHSA-2026:24841

Fixed in:operator-bundle@sha256:b04577fd53315437ef4580af92055fb5238649a5a11e68e264ea1ed70eae79db_amd64RHSA-2026:24841

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.48%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Other references4

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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 2026-04-15.