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CVE-2026-2259

A vulnerability has been found in aardappel lobster up to 2025.4. Affected by this issue is the function lobster::Parser::ParseStatements in the library dev/src/lobster/parser.h of the component Parsing. The manipulation leads to memory corruption. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The identifier of the patch is 2f45fe860d00990e79e13250251c1dde633f1f89. Applying a patch is the recommended action to fix this is
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ffc7a8c9a63d42767278b728a7745045c19a2df9f12316316a5b3d90ac1a21be
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/1/cvssV3_1

{"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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/2/cvssV3_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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/3/cvssV2_0

{"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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"modules":["Parsing"],"product":"lobster","vendor":"aardappel","versions":[{"status":"affected","version":"2025.0"},{"status":"affected","version":"2025.1"},{"status":"affected","version":"2025.2"},{"status":"affected","version":"2025.3"},{"status":"affected","version":"2025.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/1/cvssV3_1
{"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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/2/cvssV3_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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/3/cvssV2_0
{"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:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/problemTypes/0/descriptions/0

Source references

8 source assertions
{"tags":["product"],"url":"https://github.com/aardappel/lobster/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/references/7
{"tags":["patch"],"url":"https://github.com/aardappel/lobster/commit/2f45fe860d00990e79e13250251c1dde633f1f89"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/references/6
{"tags":["issue-tracking"],"url":"https://github.com/aardappel/lobster/issues/396"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/references/3
{"tags":["issue-tracking"],"url":"https://github.com/aardappel/lobster/issues/396#issuecomment-3849019040"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/references/4
{"tags":["exploit"],"url":"https://github.com/oneafter/0204/blob/main/lob2/repro.lobster"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/references/5
{"name":"VDB-345006 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.345006"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/references/1
{"name":"VDB-345006 | aardappel lobster Parsing parser.h ParseStatements memory corruption","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.345006"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /containers/cna/references/0
{"name":"Submit #753168 | aardappel lobster 8ba49f9 Memory Corruption","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.753168"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2d238e62282e8570da4b367b0474c3c4d5dcf88ace62c41c10c0320e541d63c1 · sha256:8ff150f7e4d423f8… · /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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