CVE-2022-27779libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 13 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-201
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- hackerone
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
haxx curl haxx:curl | from 7.82.0 before 7.83.1 | NVD |
netapp hci_bootstrap_os netapp:hci_bootstrap_os | all versions | NVD |
netapp clustered_data_ontap netapp:clustered_data_ontap | all versions | NVD |
netapp solidfire,_enterprise_sds_&_hci_storage_node netapp:solidfire,_enterprise_sds_&_hci_storage_node | all versions | NVD |
netapp solidfire_&_hci_management_node netapp:solidfire_&_hci_management_node | all versions | NVD |
netapp hci_compute_node netapp:hci_compute_node | all versions | NVD |
netapp h410s_firmware netapp:h410s_firmware | all versions | NVD |
netapp h700s_firmware netapp:h700s_firmware | all versions | NVD |
netapp h500s_firmware netapp:h500s_firmware | all versions | NVD |
netapp h300s_firmware netapp:h300s_firmware | all versions | NVD |
splunk universal_forwarder splunk:universal_forwarder | from 8.2.0 before 8.2.12; from 9.0.0 before 9.0.6; 9.1.0 | NVD |
References
- https://hackerone.com/reports/1553301exploit, third-party-advisory
- https://security.netapp.com/advisory/ntap-20220609-0009/third-party-advisory
- https://security.gentoo.org/glsa/202212-01vendor-advisory, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.