CVE-2026-59355
CVE-2026-59355 is a medium-severity vulnerability in Broadcom Spring Authorization Server with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Broadcom Spring Authorization Server
- Published:
- Last modified:
Description
In versions of Spring Authorization Server 1.5.0 through 1.5.7, the authorization endpoint performs insufficient validation of the request_uri parameter. An attacker can craft a request containing an invalid request_uri paired with an unvalidated redirect_uri, which can result in an open redirect to an attacker-controlled site.
Frequently asked questions
- What is CVE-2026-59355?
- In versions of Spring Authorization Server 1.5.0 through 1.5.7, the authorization endpoint performs insufficient validation of the request_uri parameter. An attacker can craft a request containing an invalid request_uri paired with an unvalidated redirect_uri, which can result in an open redirect to an attacker-controlled site.
- How severe is CVE-2026-59355?
- CVE-2026-59355 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-59355 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-59355?
- CVE-2026-59355 affects Broadcom Spring Authorization Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-59355?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-59355 published?
- CVE-2026-59355 was published on 2026-08-27 and last updated on 2026-09-01.
References
Affected products (1)
- cpe:2.3:a:broadcom:spring_authorization_server:*:*:*:*:*:*:*:*
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