Vulnerability-Lookup

OESA-2026-2858 (CVE-2026-57062)

Vulnerability from osv_openeuler – Published: 2026-07-06 11:11 – Updated: 2026-08-06 11:11 – Source website

Summary

gnupg2 security update

Details

GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP). GnuPG enables encryption and signing of data and communication, and features a versatile key management system as well as access modules for public key directories.

Security Fix(es):

CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.(CVE-2026-57062)

Severity

2.9 (Low)


                    
                      CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-57062	ADVISORY

JSON

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{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "gnupg2-2.4.3-16.oe2403sp1.aarch64.rpm",
          "gnupg2-debuginfo-2.4.3-16.oe2403sp1.aarch64.rpm",
          "gnupg2-debugsource-2.4.3-16.oe2403sp1.aarch64.rpm"
        ],
        "noarch": [
          "gnupg2-help-2.4.3-16.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "gnupg2-2.4.3-16.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "gnupg2-2.4.3-16.oe2403sp1.x86_64.rpm",
          "gnupg2-debuginfo-2.4.3-16.oe2403sp1.x86_64.rpm",
          "gnupg2-debugsource-2.4.3-16.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "gnupg2",
        "purl": "pkg:rpm/openEuler/gnupg2\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.3-16.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Low"
  },
  "details": "GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP).  GnuPG enables encryption and signing of data and communication, and features a versatile key management system as well as access modules for public key directories.\r\n\r\nSecurity Fix(es):\n\nCMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.(CVE-2026-57062)",
  "id": "OESA-2026-2858",
  "modified": "2026-08-06T11:11:46Z",
  "published": "2026-07-06T11:11:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2858"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57062"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "gnupg2 security update",
  "upstream": [
    "CVE-2026-57062"
  ]
}

CVE-2026-57062 (GCVE-0-2026-57062)

Vulnerability from cvelistv5 – Published: 2026-06-23 17:26 – Updated: 2026-06-23 17:35

Summary

Severity

2.9 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-23 17:35 UTC

CWE

CWE-1284 - Improper Validation of Specified Quantity in Input

Assigner

mitre mitre root

References

2 references

URL	Tags
https://blog.calif.io/p/how-to-format-a-ciphertext
https://www.gnupg.org/download/

Impacted products

1 product

Vendor	Product	Version
GnuPG	GnuPG	Affected: 0 , ≤ 2.5.20 (semver) cpe:2.3:a:gnupg:gnupg::::::::

Show details on NVD website

JSON

To clipboard

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            "other": {
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                "id": "CVE-2026-57062",
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-23T17:35:24.722258Z",
                "version": "2.0.3"
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        }
      ],
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          "url": "https://blog.calif.io/p/how-to-format-a-ciphertext"
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    "dateReserved": "2026-06-23T17:26:24.801Z",
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    "state": "PUBLISHED"
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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.