CVE catalog
CVE-2021-22926
libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the `CURLOPT_SSLCERT` option (`--cert` with the command line tool).When libcurl is buil
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 15.14% · Oct 27, 2026
libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the `CURLOPT_SSLCERT` option (`--cert` with the command line tool).When libcurl is built to use the macOS native TLS library Secure Transport, an application can ask for the client certificate by name or with a file name - using the same option. If the name exists as a file, it will be used instead of by name.If the appliction runs with a current working directory that is writable by other users (like `/tmp`), a malicious user can create a file name with the same name as the app wants to use by name, and thereby trick the application to use the file based cert instead of the one referred to by name making libcurl send the wrong client certificate in the TLS connection handshake.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | curl | Not reported | 7.78.0 | fixed |
| Cpe | active_iq_unified_manager | Not reported | Not reported | unknown |
| Cpe | active_iq_unified_manager | Not reported | Not reported | unknown |
| Cpe | clustered_data_ontap | Not reported | Not reported | unknown |
| Cpe | hci_management_node | Not reported | Not reported | unknown |
| Cpe | oncommand_insight | Not reported | Not reported | unknown |
| Cpe | oncommand_workflow_automation | Not reported | Not reported | unknown |
| Cpe | snapcenter | Not reported | Not reported | unknown |
| Cpe | solidfire | Not reported | Not reported | unknown |
| Cpe | mysql_server | Not reported | Not reported | unknown |
| Cpe | mysql_server | Not reported | Not reported | unknown |
| Cpe | peoplesoft_enterprise_peopletools | Not reported | Not reported | unknown |
| Cpe | peoplesoft_enterprise_peopletools | Not reported | Not reported | unknown |
| Cpe | peoplesoft_enterprise_peopletools | Not reported | Not reported | unknown |
| Cpe | sinec_infrastructure_network_services | Not reported | 1.0.1.1 | fixed |
| Cpe | h300s_firmware | Not reported | Not reported | unknown |
| Cpe | h300e_firmware | Not reported | Not reported | unknown |
| Cpe | h500e_firmware | Not reported | Not reported | unknown |
| Cpe | h500s_firmware | Not reported | Not reported | unknown |
| Cpe | h700s_firmware | Not reported | Not reported | unknown |
| Alpine | curl | 3.11 | 7.67.0-r5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | curl | cpe | Not reported | 7.78.0 | Not reported | NVD-CVE-2021-22926 | Not reported |
| Cpe | sinec_infrastructure_network_services | cpe | Not reported | 1.0.1.1 | Not reported | NVD-CVE-2021-22926 | Not reported |
| Alpine | curl | apk | 3.11 | 7.67.0-r5 | Not reported | ALPINE-CVE-2021-22926 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-389290.json]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_12116-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2021-22926]
- [https://osv.dev/vulnerability/ALPINE-CVE-2021-22926]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-22926.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1350.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]