Description
libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| curl | curl | 8.13.0 – ≤ 8.13.0, 8.12.1 – ≤ 8.12.1, 8.12.0 – ≤ 8.12.0, 8.11.1 – ≤ 8.11.1, 8.11.0 – ≤ 8.11.0, 8.10.1 – ≤ 8.10.1, 8.10.0 – ≤ 8.10.0, 8.9.1 – ≤ 8.9.1, 8.9.0 – ≤ 8.9.0, 8.8.0 – ≤ 8.8.0 | — |
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 | 8.14.0-1 | — |
| Debian 13 | curl | 8.14.0-1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | curl | 8.14.1-150600.4.28.1 | SUSE-SU-2025:03198-1 |
| SLES 15 SP6 | curl | 8.14.1-150600.4.28.1 | SUSE-SU-2025:03198-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | curl | 8.14.1-slfo.1.1_1.1 | SUSE-SU-2025:20675-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 8.14.0-1.1 | openSUSE-SU-2025:15176-1 |
| openSUSE Leap 15.6 | curl | 8.14.1-150600.4.28.1 | SUSE-SU-2025:03198-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 8.14.0-r0 | — |
| Alpine v3.23 | curl | 8.14.0-r0 | — |
| Alpine v3.22 | curl | 8.14.0-r0 | — |
| Alpine v3.21 | curl | 8.14.0-r0 | — |
| Alpine v3.20 | curl | 8.14.0-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | curl | 8.14.0-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | cmake | 3.30.3-7 | — |
Advisories 4
- openSUSE-SU-2025:15176-1 curl-8.14.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03198-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20675-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- WID-SEC-2025-1151 libcurl: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Jan 27, 2026