CVE-2021-46322: Duktape v2.99.99 was discovered to contain a SEGV vulnerability via the component duk_push_tval in duktape/duk

Routine

MEDIUM 5.5DOWNGRADE

CVE-2021-46322 is a medium-severity flaw (CVSS 5.5) affecting duktape. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Duktape v2.99.99 was discovered to contain a SEGV vulnerability via the component duk_push_tval in duktape/duk_api_stack.c.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-404
Published	2022-01-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: duktape project

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

Am I affected?

Timeline

2022-01-20 22:15 UTCPublished CVE record published
2026-06-17 04:14 UTCUpdated Record last modified

duktape project duktape DOWNGRADE

Affected: 2.99.99

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.99.99

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.99.99 (Debian / Ubuntu)

apt-cache madison duktape sudo apt install duktape=<VERSION_BEFORE_2.99.99> sudo apt-mark hold duktape

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list duktape sudo dnf downgrade duktape-<VERSION_BEFORE_2.99.99> sudo dnf versionlock add duktape

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2021-46322?

duktape: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-46322 being exploited?

CVE-2021-46322 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-2021-46322 affect?

CVE-2021-46322 affects duktape. Severity is medium (CVSS 5.5). Duktape v2.99.99 was discovered to contain a SEGV vulnerability via the component duk_push_tval in duktape/duk_api_stack.c.

How urgent is CVE-2021-46322?

Priority 37/100. Public exploit reference

References

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