CVE-2021-29505
A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 77.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
XStream is software for serializing Java objects to XML and back again. A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types is affected. The vulnerability is patched in version 1.4.17.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 77.23% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-94, CWE-502
- Affected
- xstream/xstream · debian/debian linux · fedoraproject/fedora · netapp/snapmanager · oracle/banking cash management · oracle/banking corporate lending process management · oracle/banking credit facilities process management · oracle/banking supply chain finance · oracle/banking trade finance process management · oracle/business activity monitoring · oracle/communications brm - elastic charging engine · oracle/communications unified inventory management · oracle/enterprise manager ops center · oracle/retail customer insights · oracle/retail xstore point of service · oracle/webcenter portal · oracle/webcenter sites
- Source
- security-advisories@github.com
EPSS 77.2% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/x-stream/xstream/commit/24fac82191292c6ae25f94508d28b9823f83624fPatch, Third Party Advisory
- https://github.com/x-stream/xstream/commit/f0c4a8d861b68ffc3119cfbbbd632deee624e227
- https://github.com/x-stream/xstream/security/advisories/GHSA-7chv-rrw6-w6fcThird Party Advisory
- https://lists.apache.org/thread.html/r8ee51debf7fd184b6a6b020dc31df25118b0aa612885f12fbe77f04f@%3Cdev.jmeter.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/07/msg00004.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB
- https://security.netapp.com/advisory/ntap-20210708-0007
- https://www.debian.org/security/2021/dsa-5004Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlMailing List, Third Party Advisory
- https://x-stream.github.io/CVE-2021-29505.html
- https://github.com/x-stream/xstream/commit/24fac82191292c6ae25f94508d28b9823f83624fPatch, Third Party Advisory
- https://github.com/x-stream/xstream/security/advisories/GHSA-7chv-rrw6-w6fcThird Party Advisory
- https://lists.apache.org/thread.html/r8ee51debf7fd184b6a6b020dc31df25118b0aa612885f12fbe77f04f%40%3Cdev.jmeter.apache.org%3EIssue Tracking, Mailing List
- https://lists.debian.org/debian-lts-announce/2021/07/msg00004.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/Mailing List
- https://security.netapp.com/advisory/ntap-20210708-0007/Third Party Advisory
- https://www.debian.org/security/2021/dsa-5004Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.