Medium severity6.5NVD Advisory· Published Mar 11, 2026· Updated Jun 2, 2026
CVE-2026-3784
CVE-2026-3784
Description
curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
30- osv-coords27 versionspkg:rpm/opensuse/curl&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/curl&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/curl&distro=openSUSE%20Tumbleweedpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Installer%20Updates%2015%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Installer%20Updates%2015%20SP5pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/curl&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/curl&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/curl&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/curl-mini&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/curl-mini&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
< 8.14.1-150600.4.40.1+ 26 more
- (no CPE)range: < 8.14.1-150600.4.40.1
- (no CPE)range: < 8.14.1-160000.5.1
- (no CPE)range: < 8.19.0-1.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150200.4.103.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150700.7.14.1
- (no CPE)range: < 8.0.1-11.120.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150400.5.80.1
- (no CPE)range: < 8.14.1-150600.4.40.1
- (no CPE)range: < 8.14.1-160000.5.1
- (no CPE)range: < 8.14.1-150600.4.40.1
- (no CPE)range: < 8.14.1-160000.5.1
- (no CPE)range: < 8.0.1-11.120.1
- (no CPE)range: < 8.14.1-5.1
- (no CPE)range: < 8.14.1-slfo.1.1_6.1
- (no CPE)range: < 8.14.1-160000.5.1
- (no CPE)range: < 8.14.1-160000.5.1
- (no CPE)range: < 8.14.1-160000.5.1
Patches
Vulnerability mechanics
References
5- curl.se/docs/CVE-2026-3784.htmlnvdPatchVendor Advisory
- hackerone.com/reports/3584903nvdExploitIssue TrackingThird Party Advisory
- www.openwall.com/lists/oss-security/2026/03/11/3nvdMailing ListThird Party Advisory
- curl.se/docs/CVE-2026-3784.jsonnvdVendor Advisory
- cert-portal.siemens.com/productcert/html/ssa-253495.htmlnvd
News mentions
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