---
title: "CVE-2026-22732: Spring Security HTTP Headers Are not Written Under Some Conditions"
url: https://erroneo.us/security/cve/CVE-2026-22732/
description: "CVE-2026-22732 (org.springframework.security:spring-security-web (Maven)): When applications specify HTTP response headers for servlet applications using…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-03-19
date_modified: 2026-04-02
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-22732"
kev: false
cvss: 9.1
epss: 0.00489
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-22732: Spring Security HTTP Headers Are not Written Under Some Conditions

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes org.springframework.security:spring-security-web (Maven) <= 5.7.14, no fixed version listed ; org.springframework.security:spring-security-web (Maven) >= 5.8.0, <= 5.8.16, no fixed version listed ; org.springframework.security:spring-security-web (Maven) >= 6.0.0, <= 6.3.10, no fixed version listed ; org.springframework.security:spring-security-web (Maven) >= 6.4.0, <= 6.4.13, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it is

When applications specify HTTP response headers for servlet applications using Spring Security, there is the possibility that the HTTP Headers will not be written. This issue affects Spring Security Servlet applications using lazy (default) writing of HTTP Headers: : from 5.7.0 through 5.7.21, from 5.8.0 through 5.8.23, from 6.3.0 through 6.3.14, from 6.4.0 through 6.4.14, from 6.5.0 through 6.5.8, from 7.0.0 through 7.0.3.

## Affected packages

- Maven `org.springframework.security:spring-security-web` <= 5.7.14 → fixed: none listed
- Maven `org.springframework.security:spring-security-web` >= 5.8.0, <= 5.8.16 → fixed: none listed
- Maven `org.springframework.security:spring-security-web` >= 6.0.0, <= 6.3.10 → fixed: none listed
- Maven `org.springframework.security:spring-security-web` >= 6.4.0, <= 6.4.13 → fixed: none listed
- Maven `org.springframework.security:spring-security-web` >= 6.5.0, < 6.5.9 → fixed: 6.5.9
- Maven `org.springframework.security:spring-security-web` >= 7.0.0, < 7.0.4 → fixed: 7.0.4

## Affected products (CVE record)

- VMware Spring Security: 5.7.0 <= 5.7.21, 5.8.0 <= 5.8.23, 6.3.0 <= 6.3.14, 6.4.0 <= 6.4.14, 6.5.0 <= 6.5.8, 7.0.0 <= 7.0.3

## Severity

- vmware CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.49% probability of exploitation activity in the next 30 days; percentile 41.

## Sources

- [GitHub Advisory GHSA-mf92-479x-3373](https://github.com/advisories/GHSA-mf92-479x-3373)
- [CVE.org record CVE-2026-22732](https://www.cve.org/CVERecord?id=CVE-2026-22732)
- [NVD entry CVE-2026-22732](https://nvd.nist.gov/vuln/detail/CVE-2026-22732)
- [spring.io](https://spring.io/security/cve-2026-22732)

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Source page: https://erroneo.us/security/cve/CVE-2026-22732/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt