svaarala duktape up to 2.99.99 duk_api_bytecode.c count_instr memory corruption

Summaryinfo

A vulnerability classified as critical has been found in svaarala duktape up to 2.99.99. Impacted is an unknown function of the file duk_api_bytecode.c. The manipulation of the argument count_instr leads to memory corruption. This vulnerability is traded as CVE-2026-12216. An attack has to be approached locally. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in svaarala duktape up to 2.99.99 and classified as critical. This issue affects some unknown processing of the file duk_api_bytecode.c. The manipulation of the argument count_instr with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-12216. The exploitation is known to be easy. Attacking locally is a requirement. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• svaarala

Name

• duktape

Version

• 2.99.0
• 2.99.1
• 2.99.2
• 2.99.3
• 2.99.4
• 2.99.5
• 2.99.6
• 2.99.7
• 2.99.8
• 2.99.9
• 2.99.10
• 2.99.11
• 2.99.12
• 2.99.13
• 2.99.14
• 2.99.15
• 2.99.16
• 2.99.17
• 2.99.18
• 2.99.19
• 2.99.20
• 2.99.21
• 2.99.22
• 2.99.23
• 2.99.24
• 2.99.25
• 2.99.26
• 2.99.27
• 2.99.28
• 2.99.29
• 2.99.30
• 2.99.31
• 2.99.32
• 2.99.33
• 2.99.34
• 2.99.35
• 2.99.36
• 2.99.37
• 2.99.38
• 2.99.39
• 2.99.40
• 2.99.41
• 2.99.42
• 2.99.43
• 2.99.44
• 2.99.45
• 2.99.46
• 2.99.47
• 2.99.48
• 2.99.49
• 2.99.50
• 2.99.51
• 2.99.52
• 2.99.53
• 2.99.54
• 2.99.55
• 2.99.56
• 2.99.57
• 2.99.58
• 2.99.59
• 2.99.60
• 2.99.61
• 2.99.62
• 2.99.63
• 2.99.64
• 2.99.65
• 2.99.66
• 2.99.67
• 2.99.68
• 2.99.69
• 2.99.70
• 2.99.71
• 2.99.72
• 2.99.73
• 2.99.74
• 2.99.75
• 2.99.76
• 2.99.77
• 2.99.78
• 2.99.79
• 2.99.80
• 2.99.81
• 2.99.82
• 2.99.83
• 2.99.84
• 2.99.85
• 2.99.86
• 2.99.87
• 2.99.88
• 2.99.89
• 2.99.90
• 2.99.91
• 2.99.92
• 2.99.93
• 2.99.94
• 2.99.95
• 2.99.96
• 2.99.97
• 2.99.98
• 2.99.99

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

• 🔒
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Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #833814: Duktape https://github.com/svaarala/duktape <=2.99.99 Memory Corruption (by kunlun)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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