Vulnerability-Lookup

alsa-2026:62144

Vulnerability from osv_almalinux

Published

2026-09-01 00:00

Modified

2026-09-02 09:41

Summary

Moderate: wget security, bug fix, and enhancement update

Details

The wget packages provide the GNU Wget file retrieval utility for HTTP, HTTPS, and FTP protocols.

Security Fix(es):

wget: GNU Wget: Memory corruption via crafted Metalink URL (CVE-2026-58469)
wget: GNU Wget: Heap buffer overflow via server-supplied filename leads to memory corruption (CVE-2026-58471)
wget: GNU Wget: Arbitrary code execution or denial of service via crafted HTML attribute (CVE-2026-58472)

Bug Fix(es) and Enhancement(s):

wget async unsafe code in signal handler context [almalinux-8.10.z] (JIRA:AlmaLinux-145875)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:62144	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-58469	REPORT
	https://access.redhat.com/security/cve/CVE-2026-58471	REPORT
	https://access.redhat.com/security/cve/CVE-2026-58472	REPORT
	https://bugzilla.redhat.com/2497838	REPORT
	https://bugzilla.redhat.com/2497850	REPORT
	https://bugzilla.redhat.com/2497857	REPORT
	https://errata.almalinux.org/8/ALSA-2026-62144.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "wget"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.19.5-16.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The wget packages provide the GNU Wget file retrieval utility for HTTP, HTTPS, and FTP protocols.  \n\nSecurity Fix(es):  \n\n  * wget: GNU Wget: Memory corruption via crafted Metalink URL (CVE-2026-58469)\n  * wget: GNU Wget: Heap buffer overflow via server-supplied filename leads to memory corruption (CVE-2026-58471)\n  * wget: GNU Wget: Arbitrary code execution or denial of service via crafted HTML attribute (CVE-2026-58472)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * wget async unsafe code in signal handler context [almalinux-8.10.z] (JIRA:AlmaLinux-145875)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:62144",
  "modified": "2026-09-02T09:41:04Z",
  "published": "2026-09-01T00:00:00Z",
  "references": [
    {
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-58471"
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-58472"
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    {
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      "url": "https://bugzilla.redhat.com/2497838"
    },
    {
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    },
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  "related": [
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    "CVE-2026-58471",
    "CVE-2026-58472"
  ],
  "summary": "Moderate: wget security, bug fix, and enhancement update"
}

CVE-2026-58469 (GCVE-0-2026-58469)

Vulnerability from cvelistv5 – Published: 2026-07-07 19:43 – Updated: 2026-07-14 22:03 X_Open Source

Title

GNU Wget 1.25.0 Heap Buffer Underread via Metalink URL Parsing

Summary

GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_metalink_string() function within src/metalink.c that allows a malicious server to trigger memory corruption by serving a Metalink document containing a whitespace-only URL. Attackers can cause the function to decrement a pointer past the start of the buffer when processing an all-whitespace Metalink URL, potentially leading to abnormal program behavior.

Severity

8.7 (High)


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

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-08 13:36 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://gitlab.com/gnuwget/wget/-/commit/37a40fcb…	patch
https://www.vulncheck.com/advisories/gnu-wget-hea…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
gnuwget	wget	Affected: 0 , ≤ 1.25.0 (semver) Unaffected: 37a40fcb450153f69537c7cbc2a7a4fb0b6f7826 (git) cpe:2.3:a:gnu:wget::::::::

Date Public

2026-06-29 00:00

Credits

Tristan Madani

Show details on NVD website

JSON

To clipboard

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CVE-2026-58471 (GCVE-0-2026-58471)

Vulnerability from cvelistv5 – Published: 2026-07-07 19:47 – Updated: 2026-07-14 22:03 X_Open Source

Title

GNU Wget 1.25.0 Heap Buffer Overflow via convert_fname() in url.c

Summary

GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert_fname() function within src/url.c that allows remote attackers to trigger memory corruption through a server-supplied filename requiring character set conversion. When the output buffer is too small during iconv E2BIG reallocation, the reallocation logic miscalculates the remaining space, leading to a heap buffer overflow that can be exploited via a maliciously crafted server response.

Severity

6 (Medium)


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

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-07 20:32 UTC

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://gitlab.com/gnuwget/wget/-/commit/c2640fe5…	patch
https://www.vulncheck.com/advisories/gnu-wget-hea…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
gnuwget	wget	Affected: 0 , ≤ 1.25.0 (semver) Unaffected: c2640fe5171c59f87c58dc9fcb195b2d18b010ee (git) cpe:2.3:a:gnu:wget::::::::

Date Public

2026-01-13 00:00

Credits

Tristan Madani Arkadi Vainbrand

Show details on NVD website

JSON

To clipboard

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CVE-2026-58472 (GCVE-0-2026-58472)

Vulnerability from cvelistv5 – Published: 2026-07-07 19:50 – Updated: 2026-07-14 22:03 X_Open Source

Title

GNU Wget 1.25.0 Heap Buffer Overflow via HTML Attribute Encoding

Summary

GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_quote_string() function in src/convert.c that allows a remote attacker to trigger memory corruption by supplying a crafted HTML attribute with a large number of characters requiring entity encoding. A server-supplied HTML attribute causes a signed integer counter to overflow during output size accumulation, resulting in an undersized heap allocation and subsequent heap buffer overflow during the copy phase.

Severity

6 (Medium)


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

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-08 13:45 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://gitlab.com/gnuwget/wget/-/commit/dd692d9c…	patch
https://www.vulncheck.com/advisories/gnu-wget-hea…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
gnuwget	wget	Affected: 0 , ≤ 1.25.0 (semver) Unaffected: dd692d9cea5335b181d877ae917fe6e75587a812 (git) cpe:2.3:a:gnu:wget::::::::

Date Public

2026-06-29 00:00

Credits

Tristan Madani

Show details on NVD website

JSON

To clipboard

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                  "criteria": "cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.25.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Tristan Madani"
        }
      ],
      "datePublic": "2026-06-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_quote_string() function in src/convert.c that allows a remote attacker to trigger memory corruption by supplying a crafted HTML attribute with a large number of characters requiring entity encoding. A server-supplied HTML attribute causes a signed integer counter to overflow during output size accumulation, resulting in an undersized heap allocation and subsequent heap buffer overflow during the copy phase."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-190",
              "description": "Integer Overflow or Wraparound",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T22:03:12.957Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Fix Commit",
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.com/gnuwget/wget/-/commit/dd692d9cea5335b181d877ae917fe6e75587a812"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-overflow-via-html-attribute-encoding"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "x_open-source"
      ],
      "title": "GNU Wget 1.25.0 Heap Buffer Overflow via HTML Attribute Encoding",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-58472",
    "datePublished": "2026-07-07T19:50:53.967Z",
    "dateReserved": "2026-06-30T20:20:33.790Z",
    "dateUpdated": "2026-07-14T22:03:12.957Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

alsa-2026:62144

Vulnerability from osv_almalinux

CVE-2026-58469 (GCVE-0-2026-58469)

CVE-2026-58471 (GCVE-0-2026-58471)

CVE-2026-58472 (GCVE-0-2026-58472)

Tags

Sightings

Nomenclature