How severe is CVE-2026-32288?

CVE-2026-32288 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-32288 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32288?

CVE-2026-32288 affects Golang Go. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32288?

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

Does CVE-2026-32288 have an EU (EUVD) identifier?

Yes. CVE-2026-32288 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20016.

When was CVE-2026-32288 published?

CVE-2026-32288 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-32288

CVE-2026-32288 is a medium-severity vulnerability in Golang Go with a CVSS 3.x base score of 5.5. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20016
Weakness: CWE-770
Affected product: Golang Go
Published: 2026-04-08
Last modified: 2026-06-17

Description

tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.

Frequently asked questions

What is CVE-2026-32288?: tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
How severe is CVE-2026-32288?: CVE-2026-32288 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-32288 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32288?: CVE-2026-32288 affects Golang Go. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32288?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-32288 have an EU (EUVD) identifier?: Yes. CVE-2026-32288 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20016.
When was CVE-2026-32288 published?: CVE-2026-32288 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

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