Medium severity4.8NVD Advisory· Published Apr 13, 2021· Updated Jun 17, 2026
CVE-2021-29425
CVE-2021-29425
Description
In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "//../foo", or "\\..\foo", the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus "limited" path traversal), if the calling code would use the result to construct a path value.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
commons-io:commons-ioMaven | < 2.7 | 2.7 |
com.cosium.vet:vetMaven | >= 1.0, <= 3.22 | — |
com.virjar:ratel-apiMaven | >= 1.0.0, <= 1.3.6 | — |
net.hasor:cobble-langMaven | >= 4.4.1, <= 4.6.2 | — |
org.apache.servicemix.bundles:org.apache.servicemix.bundles.commons-ioMaven | >= 1.4, <= 1.5 | — |
org.checkerframework.annotatedlib:commons-ioMaven | >= 2.6, < 2.7 | 2.7 |
org.smartboot.servlet:servlet-coreMaven | >= 0.1.9, <= 0.6 | — |
Affected products
19- osv-coords18 versionspkg:apk/chainguard/druid-compatpkg:apk/wolfi/druid-compatpkg:maven/com.cosium.vet/vetpkg:maven/com.diamondq.common/common-thirdparty.jcasbinpkg:maven/com.liferay/com.liferay.sass.compiler.jsasspkg:maven/commons-io/commons-iopkg:maven/com.virjar/ratel-apipkg:maven/net.hasor/cobble-langpkg:maven/org.apache.commons/commons-iopkg:maven/org.apache.servicemix.bundles/org.apache.servicemix.bundles.commons-iopkg:maven/org.checkerframework.annotatedlib/commons-iopkg:maven/org.smartboot.servlet/servlet-corepkg:rpm/opensuse/apache-commons-io&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/apache-commons-io&distro=openSUSE%20Tumbleweedpkg:rpm/suse/apache-commons-io&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/apache-commons-io&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/apache-commons-io&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/apache-commons-io&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5
< 34.0.0-r6+ 17 more
- (no CPE)range: < 34.0.0-r6
- (no CPE)range: < 34.0.0-r6
- (no CPE)range: >= 1.0, <= 3.22
- (no CPE)
- (no CPE)
- (no CPE)range: < 2.7
- (no CPE)range: >= 1.0.0, <= 1.3.6
- (no CPE)range: >= 4.4.1, <= 4.6.2
- (no CPE)
- (no CPE)range: >= 1.4, <= 1.5
- (no CPE)range: >= 2.6, < 2.7
- (no CPE)range: >= 0.1.9, <= 0.6
- (no CPE)range: < 2.6-lp152.2.3.1
- (no CPE)range: < 2.11.0-2.1
- (no CPE)range: < 2.6-3.3.1
- (no CPE)range: < 2.4-9.3.1
- (no CPE)range: < 2.4-9.3.1
- (no CPE)range: < 2.4-9.3.1
- Range: Apache Commons IO 2.2
Patches
Vulnerability mechanics
References
91- www.oracle.com/security-alerts/cpuapr2022.htmlnvdPatchThird Party AdvisoryWEB
- www.oracle.com/security-alerts/cpujan2022.htmlnvdPatchThird Party AdvisoryWEB
- www.oracle.com/security-alerts/cpujul2022.htmlnvdPatchThird Party AdvisoryWEB
- issues.apache.org/jira/browse/IO-556nvdExploitIssue TrackingVendor AdvisoryWEB
- github.com/advisories/GHSA-gwrp-pvrq-jmwvghsaADVISORY
- lists.apache.org/thread.html/rc359823b5500e9a9a2572678ddb8e01d3505a7ffcadfa8d13b8780ab%40%3Cuser.commons.apache.org%3EnvdMailing ListVendor AdvisoryWEB
- lists.debian.org/debian-lts-announce/2021/08/msg00016.htmlnvdMailing ListThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-29425ghsaADVISORY
- security.netapp.com/advisory/ntap-20220210-0004/nvdThird Party Advisory
- www.oracle.com/security-alerts/cpuoct2021.htmlnvdThird Party AdvisoryWEB
- arxiv.org/pdf/2306.05534.pdfghsaWEB
- github.com/jensdietrich/xshady-release/tree/main/CVE-2021-29425ghsaWEB
- lists.apache.org/thread.html/r01b4a1fcdf3311c936ce33d75a9398b6c255f00c1a2f312ac21effe1@%3Cnotifications.zookeeper.apache.org%3EghsaWEB
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- security.netapp.com/advisory/ntap-20220210-0004ghsaWEB
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