Description
In lj_str_hash.c in OpenResty 1.19.3.1 through 1.25.3.1, the string hashing function (used during string interning) allows HashDoS (Hash Denial of Service) attacks. An attacker could cause excessive resource usage during proxy operations via crafted requests, potentially leading to a denial of service with relatively few incoming requests. This vulnerability only exists in the OpenResty fork in the openresty/luajit2 GitHub repository. The LuaJIT/LuaJIT repository. is unaffected.
References (1)
Scores
CVSS v3
5.9
EPSS
0.0078
EPSS Percentile
73.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-407
Status
published
Products (2)
openresty/openresty
1.25.3.1
openresty/openresty
1.19.3.1 - 1.19.9.2
Published
Jul 23, 2024
Tracked Since
Feb 18, 2026