CVE-2019-12158: GoHTTP through 2017-07-25 has a GetExtension heap-based buffer overflow via a long extension.

Q: How do I fix CVE-2019-12158?

gohttp: upgrade to newer than 2017-07-25. Exact commands for each OS are on this page.

Q: Is CVE-2019-12158 being exploited?

CVE-2019-12158 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-2019-12158 affect?

CVE-2019-12158 affects gohttp. Severity is critical (CVSS 9.8). GoHTTP through 2017-07-25 has a GetExtension heap-based buffer overflow via a long extension.

Q: How urgent is CVE-2019-12158?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2019-12158 is a critical-severity flaw (CVSS 9.8) affecting gohttp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GoHTTP through 2017-07-25 has a GetExtension heap-based buffer overflow via a long extension.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-787
Published	2019-05-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gohttp project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-05-17 19:29 UTCPublished CVE record published
2026-06-17 02:14 UTCUpdated Record last modified

gohttp project gohttp UPGRADE

Affected: <= 2017-07-25

Fixed in: newer than 2017-07-25

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2017-07-25 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gohttp

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-2019-12158?

gohttp: upgrade to newer than 2017-07-25. Exact commands for each OS are on this page.

Is CVE-2019-12158 being exploited?

CVE-2019-12158 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-2019-12158 affect?

CVE-2019-12158 affects gohttp. Severity is critical (CVSS 9.8). GoHTTP through 2017-07-25 has a GetExtension heap-based buffer overflow via a long extension.

How urgent is CVE-2019-12158?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2019-12198 HIGH 7.5 UPGRADE In GoHttp through 2017-07-25, there is a stack-based buffer over-read via a long User-Agent header.
CVE-2019-12160 CRITICAL 9.8 UPGRADE GoHTTP through 2017-07-25 has a sendHeader use-after-free.
CVE-2019-12159 HIGH 7.5 UPGRADE GoHTTP through 2017-07-25 has a stack-based buffer over-read in the scan function (when called from getRequest

References

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