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CVE-2026-59277: Spring Security's InetAddressMatchers utility provides matchInternal() and matchExternal() builders for constr

23
Routine
LOW 3.7REMOTEUPGRADE

CVE-2026-59277 is a low-severity flaw (CVSS 3.7) affecting spring security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Spring Security's InetAddressMatchers utility provides matchInternal() and matchExternal() builders for constructing an InetAddressMatcher that classifies a given IP address as belonging to an internal (private) or external (public) network. Spring Security 7.1.0

Why this priority

  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score3.7 (Low)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.3% (top 79%)
CISA exploited listNo
WeaknessCWE-693
Published2026-08-27
Last modified2026-09-02
Publisher (CNA): VMware · Vendor: vmware

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Last updated 2026-09-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

vmware spring security UPGRADE
Affected: >= 7.1.0 and < 7.1.0.1
Fixed in: 7.1.0.1
Safe to downgrade to: a release before 7.1.0
1. Check installed version
apt-cache policy spring-security || rpm -q spring-security || spring-security --version
2. UPGRADE to 7.1.0.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade spring-security
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade spring-security
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.1.0 (Debian / Ubuntu)
apt-cache madison spring-security sudo apt install spring-security=<VERSION_BEFORE_7.1.0> sudo apt-mark hold spring-security
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list spring-security sudo dnf downgrade spring-security-<VERSION_BEFORE_7.1.0> sudo dnf versionlock add spring-security
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.

Advisories and coverage

Official advisories

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-59277?

spring security: upgrade to 7.1.0.1. Exact commands for each OS are on this page.

Is CVE-2026-59277 being exploited?

CVE-2026-59277 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-59277 affect?

CVE-2026-59277 affects spring security. Severity is low (CVSS 3.7). Spring Security's InetAddressMatchers utility provides matchInternal() and matchExternal() builders for constructing an InetAddressMatcher that classifies a given IP address as belonging to an internal (private) or external (public) network

How urgent is CVE-2026-59277?

Priority 23/100. Remotely exploitable, no login, no user action

Software pages

VMware vulnerabilities

Related CVEs

References

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