CVE-2026-45047Network attack vector

Service crash via unbounded JSON decoding

Published May 27, 2026 · Updated May 27, 2026

Resource exhaustion in xddxdd bird-lg-go before 1.4.5 allows remote attackers to crash the service through oversized JSON requests. The apiHandler and webHandlerTelegramBot handlers pass unbounded request bodies directly to Go's JSON decoder, which allocates memory until the host or container limit is exhausted. No authentication or user interaction is required; one TCP connection can terminate the daemon through a fatal out-of-memory condition.

CVSS severity7.5
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in xddxdd bird-lg-go before 1.4.5 allows remote attackers to crash the service through oversized JSON requests. The apiHandler and webHandlerTelegramBot handlers pass unbounded request bodies directly to Go's JSON decoder, which allocates memory until the host or container limit is exhausted. No authentication or user interaction is required; one TCP connection can terminate the daemon through a fatal out-of-memory condition.

The record

CVE
CVE-2026-45047
Published
May 27, 2026
Updated
May 27, 2026
Vendor
xddxdd
Product
bird-lg-go
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record 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=< 1.4.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

xddxdd · bird-lg-goversion=< 1.4.5

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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