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Mend
Mend
•added 2026/05/14 7:26 a.m.•0 views

WS-2019-0315

In 'realms-shim', versions prior to v1.2.1 are vulnerable to sandbox breach. This can lead to a full compromise of the application...

7.3CVSS5.9AI score
SaveExploits0References2
Mend
Mend
•added 2026/05/14 6:46 a.m.•0 views

WS-2019-0285

Ses before 0.6.3 contain an Outdated Static Dependency. The package relies on realms-shim and has it loaded statically instead of as a dependency that can be updated. The version of realms-shim it has contains multiple critical Sandbox Breakout vulnerabilities...

9.8CVSS5.8AI score
SaveExploits0References2
Mend
Mend
•added 2026/05/14 6:46 a.m.•0 views

WS-2019-0284

Realms-shim before 1.2.0 is vulnerable to a Sandbox Breakout. The package's core evaluator, which must switch between "unsafe mode" and "safe mode" for each call, could be left in "unsafe mode" if an attacker is able to force a RangeError in a specific timeframe. This would allow the attacker to...

7.7CVSS6.3AI score
SaveExploits0References2
EUVD
EUVD
•added 2025/10/03 8:07 p.m.•24 views

EUVD-2022-0668

Malicious code in bioql PyPI...

10CVSS9AI score0.01762EPSS
SaveExploits1References4
EUVD
EUVD
•added 2025/10/03 8:07 p.m.•15 views

EUVD-2022-0670

Malicious code in bioql PyPI...

9.8CVSS9.4AI score0.01762EPSS
SaveExploits1References4
OSV
OSV
•added 2022/01/13 3:00 p.m.•76 views

GHSA-Q4J7-V27R-FGCX Prototype Pollution in realms-shim

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

9.8CVSS5.9AI score0.01762EPSS
SaveExploits1References4
vulnersOsv
vulnersOsv
•added 2022/01/13 3:00 p.m.•10 views

@agoric/cosmic-swingset (>=0.10.8-dev.0, <=0.18.0), @agoric/ertp (>=0.1.4, <=0.4.1) +18 more potentially affected by CVE-2021-23543 via realms-shim (1.2.2)

realms-shim NPM version 1.2.2 is affected by a known vulnerability. The following packages have a transitive dependency on realms-shim and may be impacted: - @agoric/cosmic-swingset =0.10.8-dev.0, =0.1.4, =0.0.1, =0.1.1, =0.0.1, =0.0.20, =0.1.0, =2.0.1, =1.0.0, =0.0.1, =0.4.1, =0.0.6,...

9.8CVSS8.6AI score0.01762EPSS
SaveExploits1
Github Security Blog
Github Security Blog
•added 2022/01/13 3:00 p.m.•37 views

Prototype Pollution in realms-shim

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

9.8CVSS5.4AI score0.01762EPSS
SaveExploits1References4Affected Software1
OSV
OSV
•added 2022/01/12 10:56 p.m.•61 views

GHSA-PWM7-QR6J-3VJG Prototype Pollution in realms-shim

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

9.8CVSS7.2AI score0.01762EPSS
SaveExploits1References4
vulnersOsv
vulnersOsv
•added 2022/01/12 10:56 p.m.•7 views

@agoric/cosmic-swingset (>=0.10.8-dev.0, <=0.18.0), @agoric/ertp (>=0.1.4, <=0.4.1) +18 more potentially affected by CVE-2021-23594 via realms-shim (1.2.2)

realms-shim NPM version 1.2.2 is affected by a known vulnerability. The following packages have a transitive dependency on realms-shim and may be impacted: - @agoric/cosmic-swingset =0.10.8-dev.0, =0.1.4, =0.0.1, =0.1.1, =0.0.1, =0.0.20, =0.1.0, =2.0.1, =1.0.0, =0.0.1, =0.4.1, =0.0.6,...

10CVSS8.6AI score0.01762EPSS
SaveExploits1
Github Security Blog
Github Security Blog
•added 2022/01/12 10:56 p.m.•50 views

Prototype Pollution in realms-shim

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

10CVSS5.4AI score0.01762EPSS
SaveExploits1References4Affected Software1
Veracode
Veracode
•added 2022/01/11 7:57 a.m.•24 views

Prototype Pollution

realms-shim is vulnerable to prototype pollution. An attacker is able to inject properties into existing construct prototypes and modify attributes such as proto, constructor, and prototype. and bypass the sandbox...

10CVSS3.4AI score0.01762EPSS
SaveExploits1References3Affected Software1
Veracode
Veracode
•added 2022/01/11 5:48 a.m.•26 views

Sandbox Bypass

realms-shim is vulnerable to sandbox bypass. The vulnerability exists through the 'realmEvaluate' function in 'realm.js' as its does not properly validate the input, allowing an attacker bypass the sandbox by inject properties into existing construct prototypes...

9.8CVSS3.9AI score0.01762EPSS
SaveExploits1References1Affected Software1
attackerkb
attackerkb
•added 2022/01/10 2:10 p.m.•11 views

CVE-2021-23594

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

10CVSS7.2AI score0.01762EPSS
SaveExploits1References3
OSV
OSV
•added 2022/01/10 2:10 p.m.•13 views

CVE-2021-23594

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

10CVSS7.3AI score0.01762EPSS
SaveExploits1References2
NVD
NVD
•added 2022/01/10 2:10 p.m.•52 views

CVE-2021-23594

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

10CVSS0.01762EPSS
SaveExploits1References2
OSV
OSV
•added 2022/01/10 2:10 p.m.•14 views

CVE-2021-23543

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

9.8CVSS7.3AI score0.01762EPSS
SaveExploits1References2
attackerkb
attackerkb
•added 2022/01/10 2:10 p.m.•8 views

CVE-2021-23543

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

9.8CVSS7.2AI score0.01762EPSS
SaveExploits1References3
NVD
NVD
•added 2022/01/10 2:10 p.m.•57 views

CVE-2021-23543

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

9.8CVSS0.01762EPSS
SaveExploits1References2
Prion
Prion
•added 2022/01/10 2:10 p.m.•25 views

Code injection

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector...

7.5CVSS9.3AI score0.01762EPSS
SaveExploits1References2
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