CVE-2025-25288Public exploitNetwork attack vector

Application hang via Link-header regex backtracking

Published Feb 14, 2025 · Updated Feb 14, 2025

ReDoS in Octokit's @octokit/plugin-paginate-rest 1.0.0 through 11.4.0 allows remote attackers to hang applications via crafted Link headers. The iterator.ts parser applies a pattern whose capture group excludes closing brackets but accepts additional opening brackets, causing excessive backtracking while searching malformed input. Exposure requires an application to call octokit.paginate.iterator() on an untrusted or manipulated Link header; the bounded consequence is CPU exhaustion and a hang.

CVSS severity5.3
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

ReDoS in Octokit's @octokit/plugin-paginate-rest 1.0.0 through 11.4.0 allows remote attackers to hang applications via crafted Link headers. The iterator.ts parser applies a pattern whose capture group excludes closing brackets but accepts additional opening brackets, causing excessive backtracking while searching malformed input. Exposure requires an application to call octokit.paginate.iterator() on an untrusted or manipulated Link header; the bounded consequence is CPU exhaustion and a hang.

The record

CVE
CVE-2025-25288
Published
Feb 14, 2025
Updated
Feb 14, 2025
Vendor
Octokit
Product
@octokit/plugin-paginate-rest
Classifications
CWE-1333, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.0.0, < 11.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Octokit · @octokit/plugin-paginate-restversion=>= 1.0.0, < 11.4.1

Published CVSS scores

5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1333Inefficient Regular Expression Complexity
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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