CVE-2026-12216 | THREATINT

Description

A weakness has been identified in svaarala duktape up to 2.99.99. This issue affects some unknown processing of the file duk_api_bytecode.c. Executing a manipulation of the argument count_instr can lead to memory corruption. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-06-14 | Published 2026-06-15 | Updated 2026-06-15 | Assigner VulDB

MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

MEDIUM: 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

MEDIUM: 5.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Memory Corruption

Product status

2.99.0

affected

2.99.1

affected

2.99.2

affected

2.99.3

affected

2.99.4

affected

2.99.5

affected

2.99.6

affected

2.99.7

affected

2.99.8

affected

2.99.9

affected

2.99.10

affected

2.99.11

affected

2.99.12

affected

2.99.13

affected

2.99.14

affected

2.99.15

affected

2.99.16

affected

2.99.17

affected

2.99.18

affected

2.99.19

affected

2.99.20

affected

2.99.21

affected

2.99.22

affected

2.99.23

affected

2.99.24

affected

2.99.25

affected

2.99.26

affected

2.99.27

affected

2.99.28

affected

2.99.29

affected

2.99.30

affected

2.99.31

affected

2.99.32

affected

2.99.33

affected

2.99.34

affected

2.99.35

affected

2.99.36

affected

2.99.37

affected

2.99.38

affected

2.99.39

affected

2.99.40

affected

2.99.41

affected

2.99.42

affected

2.99.43

affected

2.99.44

affected

2.99.45

affected

2.99.46

affected

2.99.47

affected

2.99.48

affected

2.99.49

affected

2.99.50

affected

2.99.51

affected

2.99.52

affected

2.99.53

affected

2.99.54

affected

2.99.55

affected

2.99.56

affected

2.99.57

affected

2.99.58

affected

2.99.59

affected

2.99.60

affected

2.99.61

affected

2.99.62

affected

2.99.63

affected

2.99.64

affected

2.99.65

affected

2.99.66

affected

2.99.67

affected

2.99.68

affected

2.99.69

affected

2.99.70

affected

2.99.71

affected

2.99.72

affected

2.99.73

affected

2.99.74

affected

2.99.75

affected

2.99.76

affected

2.99.77

affected

2.99.78

affected

2.99.79

affected

2.99.80

affected

2.99.81

affected

2.99.82

affected

2.99.83

affected

2.99.84

affected

2.99.85

affected

2.99.86

affected

2.99.87

affected

2.99.88

affected

2.99.89

affected

2.99.90

affected

2.99.91

affected

2.99.92

affected

2.99.93

affected

2.99.94

affected

2.99.95

affected

2.99.96

affected

2.99.97

affected

2.99.98

affected

2.99.99

affected

Timeline

2026-06-14:	Advisory disclosed
2026-06-14:	VulDB entry created
2026-06-14:	VulDB entry last update

Credits

kunlun (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/370859 (VDB-370859 | svaarala duktape duk_api_bytecode.c memory corruption) vdb-entry technical-description

vuldb.com/vuln/370859/cti (VDB-370859 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-12216 (CVE-2026-12216 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/833814 (Submit #833814 | Duktape https://github.com/svaarala/duktape <=2.99.99 Memory Corruption) third-party-advisory

github.com/hmKunlun/compileOOB/blob/main/api_bytecode.md exploit

cve.org (CVE-2026-12216)

nvd.nist.gov (CVE-2026-12216)

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