CVE-2026-3805
CVE-2026-3805 · use after free in SMB connection reuse
This page contains facts from public vulnerability sources. Check the original advisory before updating.
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
CVSS 7.5 · High · EPSS 0.8% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
curl
- Versions
- ≥ 8.13.0, < 8.14.2: Affected (semver)
- ≥ 8.15.0, < 8.16.1: Affected (semver)
- ≥ 8.17.0, < 8.19.0: Affected (semver)
Update to 8.14.2; Update to 8.16.1; Update to 8.19.0
curl
- Versions
- ≥ f4831daa9b2a97e8a2921d6b62cc4dfdd0d8646e, < e090be9f73a7a71459ef678c7cc4b1f75e3ea883: Affected (git)
No fix published
curl
- Versions
- 8.18.0: Affected
- 8.17.0: Affected
- 8.16.0: Affected
- 8.15.0: Affected
- 8.14.1: Affected
- 8.14.0: Affected
- 8.13.0: Affected
No fix published
curl Debian:13
- Versions
- 8.14.1-2
- 8.14.1-2+deb13u1
- 8.14.1-2+deb13u2
- 8.14.1-2+deb13u2~bpo13+1
- 8.14.1-2+deb13u3
- Affected ranges
- ECOSYSTEM: < 8.14.1-2+deb13u4
Update to 8.14.1-2+deb13u4
curl Debian:14
- Versions
- 8.14.1-2
- 8.14.1-2+exp1
- 8.15.0-1
- 8.15.0-1~bpo13+1
- 8.15.0-1~exp1
- 8.15.0~rc1-1exp1
- 8.15.0~rc2-1~exp1
- 8.15.0~rc3-1~exp1
- 8.16.0-1
- 8.16.0-1+exp1
- 8.16.0-1~bpo13+1
- 8.16.0-2
- 8.16.0-3
- 8.16.0-4
- 8.16.0-4~bpo13+1
- 8.16.0~rc1-1~exp1
- 8.16.0~rc2-1
- 8.16.0~rc2-2
- 8.16.0~rc3-1
- 8.17.0-1
- 8.17.0-2
- 8.17.0-3
- 8.17.0~rc1-1~exp1
- 8.17.0~rc2-1
- 8.17.0~rc3-1
- 8.18.0-1
- 8.18.0-1~bpo13+1
- 8.18.0-2
- 8.18.0~rc1-1+exp1
- 8.18.0~rc2-1
- 8.18.0~rc3-1
- 8.19.0-1~bpo13+1
- 8.19.0~rc1-1~exp1
- 8.19.0~rc2-1
- 8.19.0~rc2-2
- 8.19.0~rc3-1
- Affected ranges
- ECOSYSTEM: < 8.19.0-1
Update to 8.19.0-1
curl Ubuntu:25.10
- Versions
- 8.12.1-3ubuntu1
- 8.13.0-5ubuntu1
- 8.14.1-1ubuntu2
- 8.14.1-1ubuntu3
- 8.14.1-2ubuntu1
- 8.14.1-2ubuntu1.1
- Affected ranges
- ECOSYSTEM: < 8.14.1-2ubuntu1.2
Update to 8.14.1-2ubuntu1.2