CVE-2026-39822

HIGH

7.8

CVSS v3

Description

On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.

CWE-61

How to fix

Remediation Available

buildahRocky

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildahRed Hat / RHEL

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-debuginfoRocky

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-debuginfoRed Hat / RHEL

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-debugsourceRed Hat / RHEL

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-debugsourceRocky

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-testsRed Hat / RHEL

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-testsRocky

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-tests-debuginfoRocky

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

buildah-tests-debuginfoRed Hat / RHEL

Fixed in:2:1.43.1-4.el10_2RHSA-2026:38494

Fixed in:2:1.43.1-4.el9_8RHSA-2026:38493

delve-0:1.26.1Rocky

Fixed in:1.module+el8.10.0+24516+40554724.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.src::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.aarch64::go-toolset:rhel8RHSA-2026:38995

delve-0:1.26.1Red Hat / RHEL

Fixed in:1.module+el8.10.0+24516+40554724.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.src::go-toolset:rhel8RHSA-2026:38995

delve-debuginfo-0:1.26.1Rocky

Fixed in:1.module+el8.10.0+24516+40554724.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.ppc64le::go-toolset:rhel8RHSA-2026:38995

delve-debuginfo-0:1.26.1Red Hat / RHEL

Fixed in:1.module+el8.10.0+24516+40554724.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.x86_64::go-toolset:rhel8RHSA-2026:38995

delve-debugsource-0:1.26.1Red Hat / RHEL

Fixed in:1.module+el8.10.0+24516+40554724.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.aarch64::go-toolset:rhel8RHSA-2026:38995

delve-debugsource-0:1.26.1Rocky

Fixed in:1.module+el8.10.0+24516+40554724.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24516+40554724.ppc64le::go-toolset:rhel8RHSA-2026:38995

go-toolsetRed Hat / RHEL

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

go-toolsetRocky

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

go-toolset-0:1.26.5Red Hat / RHEL

Fixed in:1.module+el8.10.0+24506+6809f2d9.s390x::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.aarch64::go-toolset:rhel8RHSA-2026:38995

go-toolset-0:1.26.5Rocky

Fixed in:1.module+el8.10.0+24506+6809f2d9.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.s390x::go-toolset:rhel8RHSA-2026:38995

golangRocky

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

golangRed Hat / RHEL

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

golang-0:1.26.5Red Hat / RHEL

Fixed in:1.module+el8.10.0+24506+6809f2d9.s390x::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.src::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.ppc64le::go-toolset:rhel8RHSA-2026:38995

golang-0:1.26.5Rocky

Fixed in:1.module+el8.10.0+24506+6809f2d9.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.s390x::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.src::go-toolset:rhel8RHSA-2026:38995

golang-binRed Hat / RHEL

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

golang-binRocky

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

golang-bin-0:1.26.5Red Hat / RHEL

Fixed in:1.module+el8.10.0+24506+6809f2d9.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.x86_64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.s390x::go-toolset:rhel8RHSA-2026:38995

golang-bin-0:1.26.5Rocky

Fixed in:1.module+el8.10.0+24506+6809f2d9.s390x::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.ppc64le::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.aarch64::go-toolset:rhel8RHSA-2026:38995

Fixed in:1.module+el8.10.0+24506+6809f2d9.x86_64::go-toolset:rhel8RHSA-2026:38995

golang-docsRocky

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

golang-docsRed Hat / RHEL

Fixed in:0:1.26.5-1.el10_2RHSA-2026:37436

Fixed in:0:1.26.5-1.el9_8RHSA-2026:37435

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.23%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Patch3

Vendor Advisory1

pkg.go.dev

Related Vulnerabilities

Other CWE-61 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-28189	Critical	10.0	7.2%	-	-
CVE-2024-28185	Critical	10.0	7.1%	-	-
CVE-2019-11249	Medium	6.5	3.7%	-	Fix
CVE-2019-11246	Medium	6.5	3.6%	-	Fix
CVE-2019-16775	High	7.7	3.3%	-	Fix
CVE-2019-11251	Medium	4.8	2.6%	-	Fix

Common questions

How do I fix CVE-2026-39822?

Published advisories record a fix for 99 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-39822 being actively exploited?

Not that we know of. CVE-2026-39822 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.23% is the estimated probability that it will be exploited in the next 30 days. That is higher than 14% of all scored CVEs.

How severe is CVE-2026-39822?

CVE-2026-39822 has a CVSS v3 base score of 7.8, rated important. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-39822 affect?

Published advisories record a fix for buildah (Rocky), buildah (Red Hat / RHEL), buildah-debuginfo (Rocky), buildah-debuginfo (Red Hat / RHEL), and 95 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-39822

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-13.