How severe is CVE-2026-44302?

CVE-2026-44302 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-44302 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-44302?

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.

Does CVE-2026-44302 have an EU (EUVD) identifier?

Yes. CVE-2026-44302 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29863.

When was CVE-2026-44302 published?

CVE-2026-44302 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-44302

CVE-2026-44302 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-835.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29863
Weakness: CWE-835
Published: 2026-05-12
Last modified: 2026-06-17

Description

Snappier is a high performance C# implementation of the Snappy compression algorithm. Prior to 1.3.1, Snappier.SnappyStream enters an uncatchable infinite loop when decompressing a malformed framed-format Snappy stream as small as 15 bytes. This vulnerability is fixed in 1.3.1.

Frequently asked questions

What is CVE-2026-44302?: Snappier is a high performance C# implementation of the Snappy compression algorithm. Prior to 1.3.1, Snappier.SnappyStream enters an uncatchable infinite loop when decompressing a malformed framed-format Snappy stream as small as 15 bytes. This vulnerability is fixed in 1.3.1.
How severe is CVE-2026-44302?: CVE-2026-44302 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-44302 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-44302?: 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.
Does CVE-2026-44302 have an EU (EUVD) identifier?: Yes. CVE-2026-44302 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29863.
When was CVE-2026-44302 published?: CVE-2026-44302 was published on 2026-05-12 and last updated on 2026-06-17.

References

https://github.com/brantburnett/Snappier/security/advisories/GHSA-pggp-6c3x-2xmx

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