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CVE-2026-2869

A vulnerability was identified in janet-lang janet up to 1.40.1. Affected by this vulnerability is the function janetc_varset of the file src/core/specials.c of the component handleattr Handler. The manipulation leads to out-of-bounds read. The attack can only be performed from a local environment. The exploit is publicly available and might be used. Upgrading to version 1.41.0 addresses this issue. The identifier of the patch is 2fabc80151a2b8834ee59cda8a70453f848b40e5. The affected component s
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dd9353412992d82c6b5b2942c91e502ce03a13b16a06ad3d79c15b83645be1ce
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/2/cvssV3_0
cwe · 2 assertions

{"cweId":"CWE-125","description":"Out-of-Bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"modules":["handleattr Handler"],"product":"janet","vendor":"janet-lang","versions":[{"status":"affected","version":"1.40.0"},{"status":"affected","version":"1.40.1"},{"status":"unaffected","version":"1.41.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/metrics/2/cvssV3_0

CWE assertions

2 source assertions
{"cweId":"CWE-125","description":"Out-of-Bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/problemTypes/1/descriptions/0

Source references

8 source assertions
{"tags":["product"],"url":"https://github.com/janet-lang/janet/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/7
{"tags":["patch"],"url":"https://github.com/janet-lang/janet/commit/2fabc80151a2b8834ee59cda8a70453f848b40e5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/5
{"tags":["issue-tracking"],"url":"https://github.com/janet-lang/janet/issues/1699"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/3
{"tags":["patch"],"url":"https://github.com/janet-lang/janet/releases/tag/v1.41.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/6
{"tags":["exploit"],"url":"https://github.com/oneafter/0123/blob/main/ja1/repro"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/4
{"name":"VDB-347106 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.347106"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/1
{"name":"VDB-347106 | janet-lang janet handleattr specials.c janetc_varset out-of-bounds","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.347106"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/0
{"name":"Submit #754589 | janet-lang janet 4dd08a4 Heap-based Buffer Overflow","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.754589"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:115993649ee2cd292c93c562082aac619e18a62b3c2d8dae9c73e589d7c0238e · sha256:7c7bd66b3ecdb5e2… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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