VulnerabilityModified
CVE-2021-43818
lxml is a library for processing XML and HTML in the Python language.
HIGH 7.1EPSS 2.48%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- EPSS
- 2.48% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74, CWE-79
- Affected
- lxml/lxml · fedoraproject/fedora · debian/debian linux · netapp/solidfire · netapp/solidfire enterprise sds · netapp/hci storage node firmware · oracle/communications cloud native core binding support function · oracle/communications cloud native core network exposure function · oracle/communications cloud native core policy · oracle/http server · oracle/zfs storage appliance kit
- Source
- security-advisories@github.com
References
- https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664aPatch, Third Party Advisory
- https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776Patch, Third Party Advisory
- https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0Patch, Third Party Advisory
- https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00037.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUIS2KE3HZ2AAQKXFLTJFZPP2IFHJTC7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2XMOM5PFT6U5AAXY6EFNT5JZCKKHK2V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZGNET2A4WGLSUXLBFYKNC5PXHQMI3I7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ4SPKJX3RRJK4UWA6FXCRHD2TVRQI44/
- https://security.gentoo.org/glsa/202208-06Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220107-0005/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5043Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
- https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664aPatch, Third Party Advisory
- https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776Patch, Third Party Advisory
- https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0Patch, Third Party Advisory
- https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00037.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUIS2KE3HZ2AAQKXFLTJFZPP2IFHJTC7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2XMOM5PFT6U5AAXY6EFNT5JZCKKHK2V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZGNET2A4WGLSUXLBFYKNC5PXHQMI3I7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ4SPKJX3RRJK4UWA6FXCRHD2TVRQI44/
- https://security.gentoo.org/glsa/202208-06Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220107-0005/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5043Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.