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CVE-2026-47841: An application using Spring Security's WebAuthn support may be vulnerable to user verification bypass when usi

38
Routine
HIGH 7.4REMOTEUPGRADE

CVE-2026-47841 is a high-severity flaw (CVSS 7.4) affecting spring security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An application using Spring Security's WebAuthn support may be vulnerable to user verification bypass when using a distributed HTTP session store. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score7.4 (High)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.4% (top 71%)
CISA exploited listNo
WeaknessCWE-863
Published2026-08-26
Last modified2026-09-04
Publisher (CNA): VMware · Vendor: vmware

Share: LinkedIn · X · Reddit

Last updated 2026-09-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

vmware spring security UPGRADE
Affected: >= 6.4.0 and < 6.4.19 · >= 6.5.0 and < 6.5.12 · >= 7.0.0 and < 7.0.6.1 · >= 7.1.0 and < 7.1.0.1
Fixed in: 6.4.19, 6.5.12, 7.0.6.1, 7.1.0.1
Safe to downgrade to: a release before 6.4.0
1. Check installed version
apt-cache policy spring-security || rpm -q spring-security || spring-security --version
2. UPGRADE to 6.4.19 (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 6.4.0 (Debian / Ubuntu)
apt-cache madison spring-security sudo apt install spring-security=<VERSION_BEFORE_6.4.0> 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_6.4.0> 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-2026-47841?

spring security: upgrade to 6.4.19, 6.5.12, 7.0.6.1, 7.1.0.1. Exact commands for each OS are on this page.

Is CVE-2026-47841 being exploited?

CVE-2026-47841 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-2026-47841 affect?

CVE-2026-47841 affects spring security. Severity is high (CVSS 7.4). An application using Spring Security's WebAuthn support may be vulnerable to user verification bypass when using a distributed HTTP session store. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Sec

How urgent is CVE-2026-47841?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Software pages

VMware vulnerabilities

Related CVEs

References

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