Description
curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to
the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| curl | curl | 8.5.0 – ≤ 8.5.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | curl | 8.6.0-1 | — |
| Debian 13 | curl | 8.6.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | curl | 8.5.0-2ubuntu2 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 8.6.0-1.1 | openSUSE-SU-2024:13637-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 8.6.0-r0 | — |
| Alpine v3.23 | curl | 8.6.0-r0 | — |
| Alpine v3.22 | curl | 8.6.0-r0 | — |
| Alpine v3.21 | curl | 8.6.0-r0 | — |
| Alpine v3.20 | curl | 8.6.0-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | curl | 8.6.0-r0 | — |
| Alpine v3.18 | curl | 8.6.0-r0 | — |
| Alpine v3.17 | curl | 8.6.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | curl +4 | 8.5.0-1.amzn2023.0.3 | ALAS2023-2024-581 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | curl | 8.8.0-1 | — |
| Azure Linux 2 (CBL-Mariner) | curl | 8.8.0-1 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | curl | 8.6.0-r0 | — |
Advisories 8
- WID-SEC-2024-1637 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 1, 2026
- WID-SEC-2024-0894 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 27, 2025
- WID-SEC-2024-0255 cURL: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Jul 7, 2025
- openSUSE-SU-2024:13637-1 curl-8.6.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- NCSC-2024-0339 Kwetsbaarheden verholpen in Microsoft Mariner NCSC-NL (Netherlands) · Aug 13, 2024
- NCSC-2024-0298 Kwetsbaarheden verholpen in Oracle Fusion Middleware NCSC-NL (Netherlands) · Jul 17, 2024
- WID-SEC-2024-1191 HCL BigFix: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 20, 2024
- ALAS2023-2024-581 Low: curl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Mar 27, 2024