Medium
r-cran-readxl — security advisory
An issue was discoverered in in function xls_getWorkSheet in xls.c in libxls 1.6.2, allows attackers to cause a denial of service, via a crafted XLS file.
- Products
- r-cran-readxl
- Affected versions
- 1.4.2-1, 1.4.3-1, 1.4.4-1, 1.4.5-1, 1.5.0-1, 1.5.0.1-1, 1.6.0-1
- Fixed versions
- Not specified
- CVEs
- CVE-2021-27836
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:41 UTC · Revision 1
Source evidence
An issue was discoverered in in function xls_getWorkSheet in xls.c in libxls 1.6.2, allows attackers to cause a denial of service, via a crafted XLS file.
osv:DEBIAN-CVE-2021-27836
r-cran-readxl
Fixed versions: Not specified
r-cran-readxl
Fixed versions: Not specified
r-cran-readxl
Fixed versions: Not specified
Complete source record
{
"id": "f52083c61d17f6a1d04a39f4a0ba03fbf1787c0692ea71562b21205e28b1d72c",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-27836",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-27836",
"summary": "An issue was discoverered in in function xls_getWorkSheet in xls.c in libxls 1.6.2, allows attackers to cause a denial of service, via a crafted XLS file.",
"evidence": "osv:DEBIAN-CVE-2021-27836",
"products": [
{
"name": {
"value": "r-cran-readxl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.4.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.0.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.6.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "r-cran-readxl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.4.5-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.5.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.5.0.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.6.0-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "r-cran-readxl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.4.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.5.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.5.0.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.6.0-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2021-27836",
"aliases": [
"DEBIAN-CVE-2021-27836"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "r-cran-readxl",
"purl": "pkg:deb/debian/r-cran-readxl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.4.2-1",
"1.4.3-1",
"1.4.4-1",
"1.4.5-1",
"1.5.0-1",
"1.5.0.1-1",
"1.6.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-27836.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "r-cran-readxl",
"purl": "pkg:deb/debian/r-cran-readxl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.4.5-1",
"1.5.0-1",
"1.5.0.1-1",
"1.6.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-27836.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "r-cran-readxl",
"purl": "pkg:deb/debian/r-cran-readxl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.4.5-1",
"1.5.0-1",
"1.5.0.1-1",
"1.6.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-27836.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-23T18:04:49.747590044Z",
"provider": "osv",
"upstream": [
"CVE-2021-27836"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-27836"
]
},
"related_cves": [
{
"value": "CVE-2021-27836",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 424004,
"published_at": "2021-11-03T17:15:08.337+00:00"
}