CVE-2026-58469: GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_

Q: How do I fix CVE-2026-58469?

wget: upgrade to newer than 1.25.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-58469 being exploited?

CVE-2026-58469 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-58469 affect?

CVE-2026-58469 affects wget. Severity is high (CVSS 7.5). GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_metalink_string() function within src/metalink.c that allows a malicious server to trigger memory corruption by serving a Metalink

Q: How urgent is CVE-2026-58469?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2026-58469 is a high-severity flaw (CVSS 7.5) affecting wget. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_metalink_string() function within src/metalink.c that allows a malicious server to trigger memory corruption by serving a Metalink document containing a whitespace-only URL. Attackers can cause the function to decrement a pointer past the start of the buffer when processing an all-whitespace Metalink URL, potentially leading to abnormal p

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-125
Published	2026-07-07
Last modified	2026-10-25

Publisher (CNA): VulnCheck · Vendor: gnu

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-07 21:17 UTCPublished CVE record published
2026-10-25 20:10 UTCUpdated Record last modified

gnu wget UPGRADE

Affected: <= 1.25.0

Fixed in: newer than 1.25.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wget || rpm -q wget || wget --version

2. UPGRADE to newer than 1.25.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wget

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wget

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-58469?

wget: upgrade to newer than 1.25.0. Exact commands for each OS are on this page.

Is CVE-2026-58469 being exploited?

CVE-2026-58469 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-58469 affect?

CVE-2026-58469 affects wget. Severity is high (CVSS 7.5). GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_metalink_string() function within src/metalink.c that allows a malicious server to trigger memory corruption by serving a Metalink

How urgent is CVE-2026-58469?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-58471 MEDIUM 5.9 UPGRADE GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert
CVE-2026-58472 MEDIUM 5.9 UPGRADE GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_qu
CVE-2026-58470 MEDIUM 5.3 UPGRADE GNU Wget through 1.25.0, fixed in commit 43d3ba9, contains an integer overflow vulnerability in the parse_cont

References

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