What is CVE-2026-54638?

CVE-2026-54638 is a high-severity vulnerability in Gotd Td, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-28.

How severe is CVE-2026-54638?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Gotd Td

CVE-2026-54638

gotd/td is a T Telegram MTProto API client in Go. Prior to 0.145.1, proto.UnencryptedMessage.Decode in proto/unencrypted_message.go read attacker controlled dataLen from an unauthenticated MTProto unencrypted packet and allocated make([]by…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Gotd Td — versions < 0.145.1

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling
CWE-789

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-54638?: CVE-2026-54638 is a high-severity vulnerability in Gotd Td, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-28.
How severe is CVE-2026-54638?: High severity. CVSS v3 base score is 7.5 out of 10.