Vulnerability-Lookup

CVE-2026-54723 (GCVE-0-2026-54723)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:41 – Updated: 2026-09-14 18:21

Title

devpi: Database contents leak

Summary

devpi is a Python package index staging server and packaging, testing, and release tool. Prior to 6.20.2 and 7.0.0b3, a server configured with the primary or deprecated master role allows an unauthenticated, modified GET request to the +changelog route because verify_primary does not reject a missing identity and therefore fails to require ReplicaIdentity. The response can disclose complete database content, including Argon2 password hashes and identifiers and salts for devpi-tokens; exposed hashes may be subject to dictionary attacks, and public tokens may assist attempts to derive the server secret. Large responses can also consume significant CPU, input/output capacity, and bandwidth. Servers using the standalone role are not exposed through replication, and an instance served exclusively through nginx with devpi-lockdown redirects the request to login with no known exploit. This issue is fixed in devpi-server versions 6.20.2 and 7.0.0b3.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 18:21 UTC

CWE

CWE-304 - Missing Critical Step in Authentication

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/devpi/devpi/security/advisorie…	x_refsource_CONFIRM
https://github.com/devpi/devpi/commit/b4ea49fed4a…	x_refsource_MISC
https://github.com/devpi/devpi/releases/tag/serve…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
devpi	devpi	Affected: < 6.20.2 Affected: >= 7.0.0b1, < 7.0.0b3	guessed

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-54723",
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FKIE_CVE-2026-54723

Vulnerability from fkie_nvd - Published: 2026-09-14 18:17 - Updated: 2026-09-14 19:17

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/devpi/devpi/commit/b4ea49fed4a6233d63f8509c3bf7efafc9b2db17
	security-advisories@github.com	https://github.com/devpi/devpi/releases/tag/server-6.20.2
	security-advisories@github.com	https://github.com/devpi/devpi/security/advisories/GHSA-m5pq-69xg-vcq3

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "devpi",
          "vendor": "devpi",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.20.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0b1, \u003c 7.0.0b3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "devpi is a Python package index staging server and packaging, testing, and release tool. Prior to 6.20.2 and 7.0.0b3, a server configured with the primary or deprecated master role allows an unauthenticated, modified GET request to the +changelog route because verify_primary does not reject a missing identity and therefore fails to require ReplicaIdentity. The response can disclose complete database content, including Argon2 password hashes and identifiers and salts for devpi-tokens; exposed hashes may be subject to dictionary attacks, and public tokens may assist attempts to derive the server secret. Large responses can also consume significant CPU, input/output capacity, and bandwidth. Servers using the standalone role are not exposed through replication, and an instance served exclusively through nginx with devpi-lockdown redirects the request to login with no known exploit. This issue is fixed in devpi-server versions 6.20.2 and 7.0.0b3."
    }
  ],
  "id": "CVE-2026-54723",
  "lastModified": "2026-09-14T19:17:31.703",
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        "cvssData": {
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          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
          "version": "3.1"
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        "type": "Secondary"
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  "references": [
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GHSA-M5PQ-69XG-VCQ3

Vulnerability from github – Published: 2026-08-18 20:41 – Updated: 2026-08-18 20:41

Summary

devpi-server may leak database contents

Details

Impact

If the replication protocol is enabled by using the primary (or deprecated master) role for a server instance, then the +changelog URL route can be used to read the complete database content including password hashes, and the ids and salts of tokens from devpi-tokens by using a trivially modified GET request.

The leaked hashes use the argon2 algorithm, so they are not immediately at risk by brute-force methods, but dictionary attacks are feasible. If a database leak could have happened, it is advised to change the passwords after a patched version or other mitigation is in place.

When devpi-tokens is in use, the quality of the server secret is important. It might be possible to derive the server secret if actual tokens are public by using similar techniques to finding the password for a hash. If a database leak could have happened and any tokens are public, it is advised to change the server secret.

Besides the information leak this can be used to produce significant CPU, IO and bandwidth usage depending on the database size.

Patches

The logic bug causing this issue is fixed with devpi-server 6.20.2 and devpi-server 7.0.0b3.

Workarounds

When replication isn't used the role can explicitly be set to standalone.

If the server instance is exclusively served through nginx with the devpi-lockdown plugin, the request is redirected to the login form due to missing user information. There is no known exploit in this case.

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "devpi-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.20.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54723"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-304"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-18T20:41:21Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nIf the replication protocol is enabled by using the ``primary`` (or deprecated ``master``) role for a server instance, then the ``+changelog`` URL route can be used to read the complete database content including password hashes, and the ids and salts of tokens from ``devpi-tokens`` by using a trivially modified GET request.\n\nThe leaked hashes use the ``argon2`` algorithm, so they are not immediately at risk by brute-force methods, but dictionary attacks are feasible. If a database leak could have happened, it is advised to change the passwords after a patched version or other mitigation is in place.\n\nWhen ``devpi-tokens`` is in use, the quality of the server secret is important. It might be possible to derive the server secret if actual tokens are public by using similar techniques to finding the password for a hash. If a database leak could have happened and any tokens are public, it is advised to change the server secret.\n\nBesides the information leak this can be used to produce significant CPU, IO and bandwidth usage depending on the database size.\n\n### Patches\n\nThe logic bug causing this issue is fixed with devpi-server 6.20.2 and devpi-server 7.0.0b3.\n\n### Workarounds\n\nWhen replication isn\u0027t used the role can explicitly be set to ``standalone``.\n\nIf the server instance is exclusively served through ``nginx`` with the ``devpi-lockdown`` plugin, the request is redirected to the login form due to missing user information. There is no known exploit in this case.",
  "id": "GHSA-m5pq-69xg-vcq3",
  "modified": "2026-08-18T20:41:22Z",
  "published": "2026-08-18T20:41:21Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/devpi/devpi/security/advisories/GHSA-m5pq-69xg-vcq3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/devpi/devpi"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "devpi-server may leak database contents"
}

PYSEC-2026-3661

Vulnerability from pysec - Published: 2026-08-19 11:56 - Updated: 2026-08-19 12:16

Details

Impact

Besides the information leak this can be used to produce significant CPU, IO and bandwidth usage depending on the database size.

Patches

The logic bug causing this issue is fixed with devpi-server 6.20.2 and devpi-server 7.0.0b3.

Workarounds

When replication isn't used the role can explicitly be set to standalone.

Severity

6.5 (Medium)


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

Impacted products

Name	purl
devpi-server	pkg:pypi/devpi-server

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "devpi-server",
        "purl": "pkg:pypi/devpi-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.20.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.7",
        "0.8",
        "0.8.1",
        "0.8.2",
        "0.8.3",
        "0.8.4",
        "0.8.5",
        "0.9.0",
        "0.9.1",
        "0.9.2",
        "0.9.3",
        "0.9.4",
        "1.0",
        "1.1",
        "1.2",
        "1.2.1",
        "1.2.2",
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0.6",
        "2.0.7",
        "2.1.0",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.3.0",
        "2.3.1",
        "2.4.0",
        "2.5.0",
        "2.5.1",
        "2.5.2",
        "2.5.3",
        "2.6.0",
        "2.6.1",
        "3.0.0",
        "3.0.1",
        "3.0.2",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "4.0.0",
        "4.1.0",
        "4.1.1",
        "4.2.0",
        "4.2.1",
        "4.3.0",
        "4.3.1",
        "4.3.1rc1",
        "4.3.2",
        "4.4.0",
        "4.5.0",
        "4.6.0",
        "4.7.0",
        "4.7.1",
        "4.8.0",
        "4.8.1",
        "4.9.0",
        "5.0.0",
        "5.1.0",
        "5.2.0",
        "5.3.0",
        "5.3.1",
        "5.4.0",
        "5.4.1",
        "5.5.0",
        "5.5.1",
        "6.0.0",
        "6.0.1",
        "6.1.0",
        "6.10.0",
        "6.11.0",
        "6.12.0",
        "6.12.1",
        "6.13.0",
        "6.14.0",
        "6.15.0",
        "6.16.0",
        "6.17.0",
        "6.18.0",
        "6.19.0",
        "6.19.1",
        "6.19.2",
        "6.19.3",
        "6.2.0",
        "6.20.0",
        "6.20.1",
        "6.3.0",
        "6.3.1",
        "6.4.0",
        "6.5.0",
        "6.5.1",
        "6.6.0",
        "6.6.1",
        "6.7.0",
        "6.8.0",
        "6.9.0",
        "6.9.1",
        "6.9.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54723",
    "GHSA-m5pq-69xg-vcq3"
  ],
  "details": "### Impact\n\nIf the replication protocol is enabled by using the ``primary`` (or deprecated ``master``) role for a server instance, then the ``+changelog`` URL route can be used to read the complete database content including password hashes, and the ids and salts of tokens from ``devpi-tokens`` by using a trivially modified GET request.\n\nThe leaked hashes use the ``argon2`` algorithm, so they are not immediately at risk by brute-force methods, but dictionary attacks are feasible. If a database leak could have happened, it is advised to change the passwords after a patched version or other mitigation is in place.\n\nWhen ``devpi-tokens`` is in use, the quality of the server secret is important. It might be possible to derive the server secret if actual tokens are public by using similar techniques to finding the password for a hash. If a database leak could have happened and any tokens are public, it is advised to change the server secret.\n\nBesides the information leak this can be used to produce significant CPU, IO and bandwidth usage depending on the database size.\n\n### Patches\n\nThe logic bug causing this issue is fixed with devpi-server 6.20.2 and devpi-server 7.0.0b3.\n\n### Workarounds\n\nWhen replication isn\u0027t used the role can explicitly be set to ``standalone``.\n\nIf the server instance is exclusively served through ``nginx`` with the ``devpi-lockdown`` plugin, the request is redirected to the login form due to missing user information. There is no known exploit in this case.",
  "id": "PYSEC-2026-3661",
  "modified": "2026-08-19T12:16:22.806367Z",
  "published": "2026-08-19T11:56:28.164114Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/devpi/devpi/security/advisories/GHSA-m5pq-69xg-vcq3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/devpi/devpi"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/devpi-server"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-m5pq-69xg-vcq3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54723"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "devpi-server may leak database contents"
}

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.

Action not permitted

CVE-2026-54723 (GCVE-0-2026-54723)

FKIE_CVE-2026-54723

GHSA-M5PQ-69XG-VCQ3

Impact

Patches

Workarounds

PYSEC-2026-3661

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature