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CVE-2021-26826

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary...

7.8 HighFix available

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.60%Up 0.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.8

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Record
CVE-2021-26826
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Record
CVE-2021-26826
Updated
2026-11-02
EUVDEUVD-2021-13611 No score

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Record
EUVD-2021-13611
Updated
2026-11-03
GitHub AdvisoriesGHSA-fcrr-6fjg-7jpj No score

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary...

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Record
GHSA-fcrr-6fjg-7jpj
Weakness
CWE-787
Updated
2026-11-02
OSV 7.8

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Record
CVE-2021-26826
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2021-26826 7.8

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Record
DEBIAN-CVE-2021-26826
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVUBUNTU-CVE-2021-26826 7.8

A stack overflow issue exists in Godot Engine up to v3.2 and is caused by improper boundary checks when loading .TGA image files. Depending on the context of the application, attack vector can be local or remote, and can lead to code execution and/or system crash.

Record
UBUNTU-CVE-2021-26826
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:10813-1 No score

godot-3.3.3-1.3 on GA media

These are all security issues fixed in the godot-3.3.3-1.3 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10813-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:12761-1 No score

godot3-3.5.1-1.1 on GA media

These are all security issues fixed in the godot3-3.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12761-1
Updated
2026-11-02
OSVUSN-7579-1 No score

godot vulnerabilities

It was discovered that the Godot Engine did not properly handle certain malformed WebM media files. If the Godot Engine opened a specially crafted WebM file, a remote attacker could cause a denial of service, or possibly execute arbitrary code. (CVE-2019-2126)

It was discovered that the Godot Engine did not properly handle certain malformed TGA image files. If the Godot Engine opened a specially crafted TGA image file, a remote attacker could cause a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2021-26825, CVE-2021-26826)

Record
USN-7579-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
godot
Debian:12
 All versions, plus listed versions
3.2.3-stable-13.5.1-stable-13.5.1-stable-23.5.2-stable-13.5.2-stable-2
Show 7 moreShow less
3.6+ds-13.6+ds-24.4.1+ds-14.4.1+ds-1.14.5.1+ds-14.6.3+ds-14.6.3+ds-2
 None known
godot
Debian:13
 before 3.5.1-stable-1
3.5.1-stable-1
godot
Debian:14
 before 3.5.1-stable-1
3.5.1-stable-1
godot
Ubuntu:Pro:20.04:LTS
 before 3.2-stable-2ubuntu0.1~esm1, plus listed versions
3.0.6-2build13.0.6-2build23.2-stable-2
3.2-stable-2ubuntu0.1~esm1
godot
Ubuntu:Pro:22.04:LTS
 before 3.2.3-stable-1ubuntu0.1~esm1, plus listed versions
3.2.3-stable-13.2.3-stable-1build13.2.3-stable-1build2
3.2.3-stable-1ubuntu0.1~esm1
godot
Ubuntu:26.10
 All versions, plus listed versions
4.6.3+ds-14.6.3+ds-2
 None known
godot
Ubuntu:Pro:20.04:LTS
From an advisory covering 3 CVEs
 before 3.2-stable-2ubuntu0.1~esm1, plus listed versions
3.0.6-2build13.0.6-2build23.2-stable-2
3.2-stable-2ubuntu0.1~esm1
godot
Ubuntu:Pro:22.04:LTS
From an advisory covering 3 CVEs
 before 3.2.3-stable-1ubuntu0.1~esm1, plus listed versions
3.2.3-stable-13.2.3-stable-1build13.2.3-stable-1build2
3.2.3-stable-1ubuntu0.1~esm1
godot
Ubuntu:Pro:24.04:LTS
From an advisory covering 3 CVEs
 before 3.5.2-stable-2ubuntu0.24.04.1~esm1, plus listed versions
3.5.2-stable-23.5.2-stable-2build13.5.2-stable-2build33.5.2-stable-2build4
3.5.2-stable-2ubuntu0.24.04.1~esm1
godot
openSUSE:Tumbleweed
From an advisory covering 2 CVEs
 before 3.3.3-1.3
3.3.3-1.3
godot3
openSUSE:Tumbleweed
From an advisory covering 2 CVEs
 before 3.5.1-1.1
3.5.1-1.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-26826 is a high vulnerability (CVSS 7.8) in Godotengine Godot Engine, published February 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 75th percentile. Fixed in godot 3.5.1-stable-1.

References

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