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Use after free in Jsish Jsi

Priority MEDIUM 46CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

Jsish 2.4.70 2.047 is affected by: Use After Free. The impact is: denial of service and possibly arbitrary code execution. The component is: function Jsi_RegExpNew (jsi/jsiRegexp.c:39). The attack vector is: executing crafted javascript code. The fixed version is: after commit 48a66c798d.

Why it matters now

EPSS 0.02145 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JsishJsi2.4.70 2.047 [fixed: after commit 48a66c798d]—No fix listedCNA
  • Jsi VendorJsish Affected 2.4.70 2.047 [fixed: after commit 48a66c798d] Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jsish:jsish:2.4.70_2.047:*:*:*:*:*:*:*2.4.70_2.047VulnerableJsish
  • cpe:2.3:a:jsish:jsish:2.4.70_2.047:*:*:*:*:*:*:* Versions 2.4.70_2.047 Vulnerable ·Jsish

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1010177
  2. 2026-10-03 Alias added: GHSA-ccrm-5g2g-f3rp

References

  • TI-2025-40399 A type confusion in jsish 2.0 allows incorrect control flow during execution of the… CVSS 3.1CRITICAL 9.8
  • TI-2024-16031 Jsish v3.5.0 (commit 42c694c) was discovered to contain a stack-overflow via the… CVSS 3.1CRITICAL 9.8
  • TI-2024-16033 Jsish v3.5.0 (commit 42c694c) was discovered to contain a use-after-free via the SplitChar at ./src/jsiUtils.c. CVSS 3.1CRITICAL 9.8
  • TI-2020-14504 An issue found in Jsish v.3.0.11 and before allows an attacker to cause a denial of… CVSS 3.1HIGH 7.5
  • TI-2024-16032 Jsish v3.5.0 was discovered to contain a heap-buffer-overflow in ./src/jsiUtils.c. CVSS 3.1CRITICAL 9.8
  • TI-2020-14415 Integer overflow vulnerability in function Jsi_ObjSetLength in jsish before 3.0.6, allows… CVSS 3.1CRITICAL 9.8
See all 52 →

Sources