CVE-2023-28119

HIGH7.5EPSS 0.54%

crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb

Published: 3/22/2023Modified: 2/4/2026

Also known as:GHSA-5mqj-xc49-246pCGA-wc6x-6475-2649GO-2023-1664

Description

Our use of flate.NewReader does not limit the size of the input. The user could pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process.

Affected packages (2)

Go/github.com/crewjam/samlfrom 0, < 0.4.13
Go/github.com/crewjam/samlfrom 0, < 0.4.13

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (4)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-28119
PATCHhttps://github.com/crewjam/saml
WEBhttps://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021
WEBhttps://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p