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Vulnerability record · CVE-2018-21245 · published 15 June 2020

CVE-2018-21245: Apsis pound http request smuggling vulnerability

Apsis · Pound

Pound before 2.8 allows HTTP request smuggling, a related issue to CVE-2016-10711.

9.1 CVSS 3.1 Critical EPSS 1.1% · top 35.0% CWE-444 · HTTP request smuggling
9.1CVSS 3.1 base score, v2 6.4
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Pound before 2.8 allows HTTP request smuggling, a related issue to CVE-2016-10711.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://admin.hostpoint.ch/pipermail/pound_apsis.ch/2018-May/000054.html Third Party Advisory
https://bugs.gentoo.org/714084
https://admin.hostpoint.ch/pipermail/pound_apsis.ch/2018-May/000054.html Third Party Advisory
https://bugs.gentoo.org/714084

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2016-10711Debian linux http request smuggling vulnerabilityApsis Pound before 2.8a allows request smuggling via crafted headers, a different vulnerability than CVE-2005-3751.EPSS 2.8%7.5CVE-2005-1391Apsis pound vulnerabilityBuffer overflow in the add_port function in APSIS Pound 1.8.2 and earlier allows remote attackers to execute arbitrary code via a long Host HTTP head…EPSS 6.1%7.5CVE-2004-2026Apsis pound vulnerabilityFormat string vulnerability in the logmsg function in svc.c for Pound 1.5 and earlier allows remote attackers to execute arbitrary code via format st…EPSS 6.6%4.3CVE-2005-3751Apsis pound vulnerabilityHTTP request smuggling vulnerability in Pound before 1.9.4 allows remote attackers to poison web caches, bypass web application firewall protection, …EPSS 1.5%6.5CVE-2026-48710Starlette Host header validation flaw enables request.url path mismatchStarlette before 1.0.1 did not validate the HTTP Host header before using it to rebuild request.url, so a malformed Host value could make request.url…KEVEPSS 7.1%analysed7.5CVE-2025-61884Oracle E-Business Suite Configurator pre-auth data exposure flawOracle Configurator in Oracle E-Business Suite 12.2.3 through 12.2.14 exposes a vulnerability reachable over HTTP without authentication. A successfu…KEVEPSS 96%analysed9.9CVE-2023-48365Qlik Sense Enterprise HTTP Request Smuggling Enables Unauthenticated RCEQlik Sense Enterprise for Windows before August 2023 Patch 2 fails to properly validate HTTP headers, allowing HTTP request tunneling to the backend …KEVEPSS 47%analysed9.9CVE-2023-41265Qlik Sense Enterprise HTTP request tunneling privilege escalationQlik Sense Enterprise for Windows fails to properly handle raw HTTP requests, allowing request tunneling that reaches the backend repository applicat…KEVEPSS 88%analysed

Source: NIST National Vulnerability Database (record CVE-2018-21245), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.