CVE-2026-58471

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-58471
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-58471.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-58471
Downstream
BELL (1)
CGA (4)
DEBIAN (1)
ECHO (1)
JLSEC (1)
MGASA (1)
OESA (1)
openSUSE (2)
RHSA (3)
RLSA (3)
ROOT (5)
SUSE (6)
UBUNTU (1)
Related
ALSA (3)
openSUSE (2)
SUSE (6)
Published
2026-07-07T19:47:47Z
Modified
2026-09-10T18:27:12Z
Severity
  • 6.0 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
GNU Wget 1.25.0 Heap Buffer Overflow via convert_fname() in url.c
Details

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.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-122"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58471.json"
}
References

Affected packages

Git / gitlab.com/gnuwget/wget

Affected ranges

Type
GIT
Repo
https://gitlab.com/gnuwget/wget
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c2640fe5171c59f87c58dc9fcb195b2d18b010ee
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "1.25.0"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.12
v1.13
v1.13.1
v1.13.2
v1.13.3
v1.13.4
v1.14
v1.15
v1.16
v1.16.1
v1.16.2
v1.16.3
v1.17
v1.17.1
v1.18
v1.19
v1.19.1
v1.19.2
v1.19.3
v1.19.4
v1.19.5
v1.20
v1.20.1
v1.20.2
v1.20.3
v1.21
v1.21.1
v1.21.2
v1.21.3
v1.21.4
v1.24.5
v1.25.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-58471.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "294500228288664263625566711264141674268",
                "199220650042591654369529381888353120125",
                "95353833620347814771463094521014642397",
                "242719895248178841474821771296533257917",
                "48869115540669839174357667352734493065",
                "278072853899392985474035146633435263733",
                "261827622472641176285802154208345937009",
                "117736049488357435672958566244550401902",
                "260366348520192133835145400447701741387",
                "182083678579101949302146237586105708061",
                "178166415751543498109291477949194743683",
                "204343209596003018662545539021124742601",
                "324778690218820308708773285349555998474",
                "50988566751615329397715604544818724913",
                "306820567038559673937729912774310426983",
                "282215887192772135856808672275956114641",
                "141963259781630858488931853108443860237",
                "239498595861488396254100329307580822270",
                "192625165309822972587069235614994581664"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-58471-691fc610",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://gitlab.com/gnuwget/wget@c2640fe5171c59f87c58dc9fcb195b2d18b010ee",
        "target":  {
            "file":  "src/url.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "65550410819091286333420077388895906521",
            "length":  1649
        },
        "id":  "CVE-2026-58471-b11efdd3",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://gitlab.com/gnuwget/wget@c2640fe5171c59f87c58dc9fcb195b2d18b010ee",
        "target":  {
            "file":  "src/url.c",
            "function":  "convert_fname"
        }
    }
]
vanir_signatures_modified 
"2026-08-18T17:56:19Z"