CVE-2025-25289
CVE-2025-25289 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-1333.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 1% (44th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-4103
- Weakness: CWE-1333
- Published:
- Last modified:
Description
@octokit/request-error is an error class for Octokit request errors. Starting in version 1.0.0 and prior to version 6.1.7, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the processing of HTTP request headers. By sending an authorization header containing an excessively long sequence of spaces followed by a newline and "@", an attacker can exploit inefficient regular expression processing, leading to excessive resource consumption. This can significantly degrade server performance or cause a denial-of-service (DoS) condition, impacting availability. Version 6.1.7 contains a fix for the issue.
Frequently asked questions
- What is CVE-2025-25289?
- @octokit/request-error is an error class for Octokit request errors. Starting in version 1.0.0 and prior to version 6.1.7, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the processing of HTTP request headers. By sending an authorization header containing an excessively long sequence of spaces followed by a newline and "@", an attacker can exploit inefficient regular expression processing, leading to excessive resource consumption. This can significantly degrade server performance or cause a denial-of-service (DoS) condition, impacting availability. Version 6.1.7 contains a fix for the issue.
- How severe is CVE-2025-25289?
- CVE-2025-25289 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2025-25289 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-25289?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-25289 have an EU (EUVD) identifier?
- Yes. CVE-2025-25289 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4103.
- When was CVE-2025-25289 published?
- CVE-2025-25289 was published on 2025-02-14 and last updated on 2026-06-17.
References
- https://github.com/octokit/request-error.js/blob/main/src/index.ts
- https://github.com/octokit/request-error.js/commit/d558320874a4bc8d356babf1079e6f0056a59b9e
- https://github.com/octokit/request-error.js/security/advisories/GHSA-xx4v-prfh-6cgc
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