rustsec-2026-0180
Vulnerability from osv_rustsec
Published
2026-06-12 12:00
Modified
2026-06-12 17:27
Summary
Panic decoding a malformed `hstore` value allows denial of service
Details

A malicious or compromised server can return a binary hstore value with an invalid internal length field, causing the client to panic while decoding it.

Applications that connect only to a trusted database are not exposed; the risk applies to clients that may connect to untrusted or user-supplied servers, or whose connection can be intercepted by a man-in-the-middle.

Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "postgres_protocol::types::hstore_from_sql"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "postgres-protocol",
        "purl": "pkg:cargo/postgres-protocol"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.6.12"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "A malicious or compromised server can return a binary `hstore` value with an\ninvalid internal length field, causing the client to panic while decoding it.\n\nApplications that connect only to a trusted database are not exposed; the risk\napplies to clients that may connect to untrusted or user-supplied servers, or\nwhose connection can be intercepted by a man-in-the-middle.",
  "id": "RUSTSEC-2026-0180",
  "modified": "2026-06-12T17:27:58Z",
  "published": "2026-06-12T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/postgres-protocol"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0180.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rust-postgres/rust-postgres/commit/a7cf84b5c46431cbca9d8ff50508c23f446efa7d"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Panic decoding a malformed `hstore` value allows denial of service"
}


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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

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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.