Description
GNU Wget through 1.25.0, fixed in commit 43d3ba9, contains an integer overflow vulnerability in the parse_content_range() function within src/http.c that allows server-controlled values to cause signed integer arithmetic to overflow. Attackers can supply malicious Content-Range header values to trigger undefined behavior and download desynchronization in the affected client.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| gnuwget | wget | ≤ 1.25.0 | — |
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 | wget | No fix yet | — |
| Debian 13 | wget | No fix yet | — |
| Debian 12 | wget | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | wget | 1.25.0-2ubuntu4.2 | USN-8543-1 |
| Ubuntu 25.10 | wget | No fix yet | — |
| Ubuntu 24.04 LTS | wget | 1.21.4-1ubuntu4.3 | USN-8543-1 |
| Ubuntu 22.04 LTS | wget | 1.21.2-2ubuntu1.3 | USN-8543-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | wget | 1.20.3-1ubuntu2.1+esm2 | USN-8543-1 |
| Ubuntu Pro 18.04 LTS | wget | 1.19.4-1ubuntu2.2+esm3 | USN-8543-1 |
| Ubuntu Pro 16.04 LTS | wget | 1.17.1-1ubuntu1.5+esm3 | USN-8543-1 |
| Ubuntu Pro 14.04 LTS | wget | 1.15-1ubuntu1.14.04.5+esm2 | USN-8543-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | wget | 1.24.5-150700.3.3.1 | SUSE-SU-2026:3148-1 |
| SLES 15 SP5 | wget | 1.20.3-150000.3.34.1 | SUSE-SU-2026:3206-1 |
| SLES 15 SP4 | wget | 1.20.3-150000.3.34.1 | SUSE-SU-2026:3206-1 |
| SLES 12 SP5 | wget | 1.14-21.28.1 | SUSE-SU-2026:3205-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | wget | 1.25.0-160000.3.1 | SUSE-SU-2026:23326-1 |
| SLES for SAP 15 SP5 | wget | 1.20.3-150000.3.34.1 | SUSE-SU-2026:3206-1 |
| SLES for SAP 15 SP4 | wget | 1.20.3-150000.3.34.1 | SUSE-SU-2026:3206-1 |
| SLES 16.0 | wget | 1.25.0-160000.3.1 | SUSE-SU-2026:23326-1 |
| SLE Micro 6.2 | wget | 1.25.0-160000.3.1 | SUSE-SU-2026:23297-1 |
| SLE Micro 6.1 | wget | 1.24.5-slfo.1.1_4.1 | SUSE-SU-2026:23163-1 |
| SLE Micro 6.0 | wget | 1.24.5-3.1 | SUSE-SU-2026:23053-1 |
| SLE Micro 5.5 | wget | 1.20.3-150000.3.34.1 | SUSE-SU-2026:3206-1 |
| SLE HPC 15 SP5 | wget | 1.20.3-150000.3.34.1 | SUSE-SU-2026:3206-1 |
| SLE HPC 15 SP4 | wget | 1.20.3-150000.3.34.1 | SUSE-SU-2026:3206-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wget | 1.25.0-3.1 | openSUSE-SU-2026:11252-1 |
| openSUSE Leap 16.0 | wget | 1.25.0-160000.3.1 | openSUSE-SU-2026:21665-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | wget | 1.25.0-r15 | — |
| Wolfi rolling | wget-doc | No fix yet | — |
Advisories 11
- WID-SEC-2026-2236 wget: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Oct 4, 2026
- SUSE-SU-2026:23326-1 Security update for wget SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:23297-1 Security update for wget SUSE / openSUSE Security Updates · Sep 4, 2026
- openSUSE-SU-2026:21665-1 Security update for wget SUSE / openSUSE Security Updates · Aug 28, 2026
- SUSE-SU-2026:23163-1 Security update for wget SUSE / openSUSE Security Updates · Aug 22, 2026
- SUSE-SU-2026:23053-1 Security update for wget SUSE / openSUSE Security Updates · Aug 12, 2026
- SUSE-SU-2026:3205-1 Security update for wget SUSE / openSUSE Security Updates · Jul 24, 2026
- SUSE-SU-2026:3206-1 Security update for wget SUSE / openSUSE Security Updates · Jul 24, 2026
- SUSE-SU-2026:3148-1 Security update for wget SUSE / openSUSE Security Updates · Jul 22, 2026
- USN-8543-1 wget vulnerabilities Ubuntu Security Notices (USN) · Jul 15, 2026
- openSUSE-SU-2026:11252-1 wget-1.25.0-3.1 on GA media SUSE / openSUSE Security Updates · Jul 11, 2026
References
- Fix Commit patch
- https://www.vulncheck.com/advisories/gnu-wget-integer-overflow-via-content-range-header-parsing third-party-advisory