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CVE-2026-41082 (GCVE-0-2026-41082)

Vulnerability from cvelistv5 – Published: 2026-04-16 17:32 – Updated: 2026-07-15 01:00
VLAI
Summary
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 16:10 UTC
CWE
  • CWE-24 - Path Traversal: '../filedir'
Impacted products
Vendor Product Version CPE status
OCaml opam Affected: 0 , < 2.5.1 (semver)
guessed Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
Show details on NVD website

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                      {
                        "Technical Impact": "partial"
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                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-16T16:10:19.452755Z",
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                "tags": [
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                "url": "https://osv.dev/vulnerability/OSEC-2026-03"
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            "title": "CISA ADP Vulnrichment"
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              "packageURL": "pkg:opam/opam-format",
              "product": "opam",
              "vendor": "OCaml",
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              "lang": "en",
              "value": "In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory."
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                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
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                "confidentialityImpact": "LOW",
                "integrityImpact": "HIGH",
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              "descriptions": [
                {
                  "cweId": "CWE-24",
                  "description": "CWE-24 Path Traversal: \u0027../filedir\u0027",
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                  "type": "CWE"
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              "url": "https://github.com/ocaml/opam/releases/tag/2.5.1"
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            {
              "url": "https://github.com/ocaml/opam/pull/6897"
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        "assignerShortName": "mitre",
        "cveId": "CVE-2026-41082",
        "datePublished": "2026-04-16T17:32:40.068Z",
        "dateReserved": "2026-04-16T17:32:39.584Z",
        "dateUpdated": "2026-07-15T01:00:03.411Z",
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      },
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    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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