CVE-2026-47888

Q: How do I fix CVE-2026-47888?

Upgrade spring framework to 6.0.31 or later.

Q: Is CVE-2026-47888 being actively exploited?

Not that we know of. CVE-2026-47888 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.32% is the estimated probability that it will be exploited in the next 30 days. That is higher than 25% of all scored CVEs.

Q: How severe is CVE-2026-47888?

CVE-2026-47888 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-47888 affect?

Published advisories record a fix for spring framework (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.5

CVSS v3

NVD

Description

A Spring RSocket application is exposed to a memory leak via a malformed SETUP frame. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.0.RELEASE - 5.2.25.RELEASE

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

spring frameworkNVD

Affected:>= 6.0.0, < 6.0.31Fixed in:6.0.31CVE-2026-47888derived from NVD

Affected:>= 7.0.0, < 7.0.8.1Fixed in:7.0.8.1CVE-2026-47888derived from NVD

Affected:>= 6.1.0, < 6.1.29Fixed in:6.1.29CVE-2026-47888derived from NVD

Affected:>= 5.3.0, < 5.3.50Fixed in:5.3.50CVE-2026-47888derived from NVD

Affected:>= 6.2.0, < 6.2.20Fixed in:6.2.20CVE-2026-47888derived from NVD

Affected:>= 5.2.0, < 5.2.26Fixed in:5.2.26CVE-2026-47888derived from NVD

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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

AvailabilityHigh

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

Exploit Intelligence

0.32%probability of exploitation in 30 days

25thpercentile

Low risk: more likely to be exploited than 25% of all known CVEs.

References

Vendor Advisory1

spring.io

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	60%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	19%	-	-

Common questions

How do I fix CVE-2026-47888?

Upgrade spring framework to 6.0.31 or later.

Is CVE-2026-47888 being actively exploited?

Not that we know of. CVE-2026-47888 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.32% is the estimated probability that it will be exploited in the next 30 days. That is higher than 25% of all scored CVEs.

How severe is CVE-2026-47888?

CVE-2026-47888 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-47888 affect?

Published advisories record a fix for spring framework (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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 2026-09-10.