0.0
NA
CVE-2026-33817
Vulnerability in go.etcd.io/bbolt
Description

Index out-of-range when encountering a branch page with zero elements in go.etcd.io/bbolt

INFO

Published Date :

April 6, 2026, 7:16 p.m.

Last Modified :

April 6, 2026, 7:16 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-33817 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

Solution
Fix index out-of-range by handling zero elements in branch pages.
  • Update go.etcd.io/bbolt to the latest version.
  • Review and apply the fix for branch page element handling.
  • Test thoroughly to ensure stability and prevent crashes.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-33817.

URL Resource
https://github.com/etcd-io/bbolt/pull/1171/changes/386d5b69785937d1aa20cb25c8439404cf398143
https://github.com/golang/vulndb/issues/4923
https://pkg.go.dev/vuln/GO-2026-4923
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-33817 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-33817 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-33817 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-33817 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Apr. 06, 2026

    Action Type Old Value New Value
    Added Description Index out-of-range when encountering a branch page with zero elements in go.etcd.io/bbolt
    Added Reference https://github.com/etcd-io/bbolt/pull/1171/changes/386d5b69785937d1aa20cb25c8439404cf398143
    Added Reference https://github.com/golang/vulndb/issues/4923
    Added Reference https://pkg.go.dev/vuln/GO-2026-4923
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.