Vulnerability-Lookup

GHSA-P9R5-QPP4-RJG3

Vulnerability from github – Published: 2026-05-28 21:32 – Updated: 2026-05-29 00:38

Details

Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability in the pcm_unpack_24be function in src/pcm/Pack.cxx that allows unauthenticated attackers to corrupt stack memory by triggering an off-by-one write in the PCM decoder plugin. Attackers can issue two MPD commands referencing a malicious HTTP audio source to cause the unpack loop to write 1366 entries into a 1365-entry buffer, overwriting four bytes past the array boundary with three attacker-controlled bytes from an HTTP response body, resulting in daemon termination or potential code execution.

Severity

8.6 (High)


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

8.8 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-49127"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-193"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T20:16:26Z",
    "severity": "HIGH"
  },
  "details": "Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability in the pcm_unpack_24be function in src/pcm/Pack.cxx that allows unauthenticated attackers to corrupt stack memory by triggering an off-by-one write in the PCM decoder plugin. Attackers can issue two MPD commands referencing a malicious HTTP audio source to cause the unpack loop to write 1366 entries into a 1365-entry buffer, overwriting four bytes past the array boundary with three attacker-controlled bytes from an HTTP response body, resulting in daemon termination or potential code execution.",
  "id": "GHSA-p9r5-qpp4-rjg3",
  "modified": "2026-05-29T00:38:32Z",
  "published": "2026-05-28T21:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49127"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MusicPlayerDaemon/MPD/issues/2485"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MusicPlayerDaemon/MPD/commit/59911028c020f84bc2e669da6a1ef88121301274"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MusicPlayerDaemon/MPD/releases/tag/v0.24.11"
    },
    {
      "type": "WEB",
      "url": "https://mstreet97.github.io/security-research/opensource/vulnerability-disclosure/cybersecurity/cve/2026/05/25/Four_Bugs_Reachable_nc.html"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/MusicPlayerDaemon/MPD/v0.24.11/NEWS"
    },
    {
      "type": "WEB",
      "url": "https://www.musicpd.org/news/2026/05/mpd-0-24-11-released"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/music-player-daemon-stack-buffer-overflow-via-pcm-unpack-24be"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-49127 (GCVE-0-2026-49127)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:59 – Updated: 2026-07-28 01:49 X_Open Source

Title

Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be

Summary

Severity

8.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

8.6 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-29 19:14 UTC

CWE

CWE-193 - Off-by-one Error

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7416 records in the last 180 days details

References

7 references

URL	Tags
https://mstreet97.github.io/security-research/ope…	technical-descriptionexploit
https://www.musicpd.org/news/2026/05/mpd-0-24-11-…	release-notespatch
https://raw.githubusercontent.com/MusicPlayerDaem…	release-notes
https://github.com/MusicPlayerDaemon/MPD/releases…	release-notes
https://github.com/MusicPlayerDaemon/MPD/issues/2485	issue-tracking
https://github.com/MusicPlayerDaemon/MPD/commit/5…	patch
https://www.vulncheck.com/advisories/music-player…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
MusicPlayerDaemon	MPD	Affected: 0 , < 0.24.11 (semver) cpe:2.3:a:musicpd:music_player_daemon::::::::

Date Public

2026-05-15 00:00

Credits

Matteo Strada Daniele Berardinelli

Show details on NVD website

JSON

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        "metrics": [
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                "id": "CVE-2026-49127",
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-29T19:14:21.889149Z",
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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.

Vulnerability timeline

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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.
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