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CVE-2026-59696: CWE-1284 Improper Validation of Specified Quantity in Input in Erlang OTP

0
Medium
VulnerabilityCVE-2026-59696cvecve-2026-59696cwe-1284
Published: 09/01/2026 (09/01/2026, 14:37:33 UTC)
Source: CVE Database V5
Vendor/Project: Erlang
Product: OTP

Description

Improper Validation of Specified Quantity in Input vulnerability in Erlang/OTP stdlib allows a remote attacker to degrade availability by supplying a URI whose port component is a very long run of digits. uri_string:get_port/1 passes the port substring to binary_to_integer/1 with no length bound, catching only error:badarg, so a syntactically valid port of up to roughly 1.26 million digits converts successfully and costs the calling process hundreds of milliseconds of arbitrary-precision arithmetic. The conversion is reached from every authority-parsing path in uri_string:parse/1, including the host, registered-name, and IPv4 and IPv6 forms. parse/1 is the documented interface for parsing URIs, so any application that parses an attacker-supplied URI is exposed without further configuration. The conversion function is documented to accept integers of any size, so bounding the input is the caller's responsibility. This issue affects OTP from OTP 21.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to stdlib from 3.5 before 6.2.2.5, from 7.0 before 7.3.0.2, and from 8.0 before 8.0.4.

CVSS v4.0

Score 6.9medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
None
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Affected software

GitHub Actionsmore threats →cve
stdlib
pkg:github/stdlib
Affected versions
>=3.5 <6.2.2.5>=7.0 <7.3.0.2>=8.0 <8.0.4
GitHub Actionsmore threats →cve
erlang/otp
pkg:github/erlang/otp
CPE configurations
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
EEF
Date Reserved
2026-07-06T14:05:47.003Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a96e6ecacd9273b49d71679

Added to database: 09/01/2026, 14:53:32 UTC

Last updated: 09/01/2026, 15:38:34 UTC

Views: 2

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