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TI-2024-26625 Aliases CVE-2024-39702GHSA-6px8-752j-c2vv

In lj_str_hash.c in OpenResty 1.19.3.1 through 1.25.3.1, the string hashing function…

Priority LOW 27CWE-407Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-407.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00556 46th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:openresty:openresty:*:*:*:*:*:*:*:*1.19.3.1 to before 1.19.9.2; 1.21.4.1 to before 1.21.4.4Vulnerableopenresty
cpe:2.3:a:openresty:openresty:1.25.3.1:*:*:*:*:*:*:*1.25.3.1Vulnerableopenresty
  • cpe:2.3:a:openresty:openresty:*:*:*:*:*:*:*:* Versions 1.19.3.1 to before 1.19.9.2; 1.21.4.1 to before 1.21.4.4 Vulnerable ·openresty
  • cpe:2.3:a:openresty:openresty:1.25.3.1:*:*:*:*:*:*:* Versions 1.25.3.1 Vulnerable ·openresty

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat 3scale API Management Platform 2AffectedNo fix planned: Will not fix

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-39702
  2. 2026-10-03 Alias added: GHSA-6px8-752j-c2vv

References

Patch 1

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2021-05876 A security issue in nginx resolver was identified, which might allow an attacker who is… CVSS 3.1HIGH 7.7
  • TI-2018-06684 In OpenResty through 1.13.6.1, URI parameters are obtained using the ngx.req.get_uri_args… CVSS 3.0CRITICAL 9.8
  • TI-2026-39910 OpenResty: Buffer overflow when writing PROXY protocol v2 header to upstream CVSS 3.1HIGH 7.5
  • TI-2020-09415 An issue was discovered in OpenResty before 1.15.8.4. CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences