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Vulnerabilities

Vulnerability · CVE-2026-40973

A local attacker on the same host as the application may be able to take control of the directory used by .

Published Apr 28, 2026 · catalog updated Jul 24, 2026 · spring boot

Check if you run it

No confirmed exploitation is on record for CVE-2026-40973. EPSS is 0.13%. Act only if a listed version of spring boot is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.13%
Remediation
Advisory link
Affected products
cpe vmware/spring boot

A local attacker on the same host as the application may be able to take control of the directory used by . When is set to and the attack persists across application restarts, this may allow the attacker to read session information and hijack authenticated users or deploy a gadget chain and execute code as the application's user. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); predictable temp directory / ownership verification. Versions that are no longer supported are also affected per vendor advisory.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe vmware/spring bootversion unspecified

How to fix CVE-2026-40973

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-40973. EPSS is 0.13%. Act only if a listed version of spring boot is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-377. EPSS 0.13%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 28, 2026 · NIST NVD

    Detected

    A local attacker on the same host as the application may be able to take control of the directory used by . When is set to and the attack persists across application restarts, this may allow the attacker to read session information and hijack authenticated users or deploy a gadget chain and execute code as the application's user. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5

  2. Jul 24, 2026 · NIST NVD

    Updated

    A local attacker on the same host as the application may be able to take control of the directory used by . When is set to and the attack persists across application restarts, this may allow the attacker to read session information and hijack authenticated users or deploy a gadget chain and execute code as the application's user. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5

Sources

  • CVE.orgVulnerability recordCVE-2026-40973

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-40973

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-40973

    A local attacker on the same host as the application may be able to take control of the directory used by . When is set to and the attack persists across application restarts, this may allow the attacker to read session

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.