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CVE-2026-6878

A vulnerability was identified in ByteDance verl up to 0.7.0. Affected is the function math_equal of the file prime_math/grader.py. The manipulation leads to sandbox issue. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:85646ad70a0e193a06d08116f0274a0c489a22550f0c86555fd2f3167f64464d
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":5.1,"vectorString":"AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":5.6,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":5.6,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/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:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-264","description":"Improper Access Controls","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-265","description":"Sandbox Issue","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"verl","vendor":"ByteDance","versions":[{"status":"affected","version":"0.1"},{"status":"affected","version":"0.2"},{"status":"affected","version":"0.3"},{"status":"affected","version":"0.4"},{"status":"affected","version":"0.5"},{"status":"affected","version":"0.6"},{"status":"affected","version":"0.7.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":5.1,"vectorString":"AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":5.6,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":5.6,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/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:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-264","description":"Improper Access Controls","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-265","description":"Sandbox Issue","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["exploit"],"url":"https://github.com/zast-ai/vulnerability-reports/blob/main/bytedance/verl_rce.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/references/3
{"name":"Submit #795257 | Bytedance verl <=0.7.0 Arbitrary Code Execution","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/795257"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/references/2
{"name":"VDB-359040 | ByteDance verl grader.py math_equal sandbox","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/359040"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/references/0
{"name":"VDB-359040 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/359040/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b3e2d18a0fc4fd425e8cfd825fb331ac094e469458405294d68727c36fd55302 · sha256:9214272059d8ce43… · /containers/cna/references/1

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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