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Vulnerability details: VCID-4zpd-uwnd-zfg1
Vulnerability ID VCID-4zpd-uwnd-zfg1
Aliases CVE-2021-31811
GHSA-fg3j-q579-v8x4
Summary Improper Check for Unusual or Exceptional Conditions In Apache PDFBox, a carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-770 Allocation of Resources Without Limits or Throttling
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-400 Uncontrolled Resource Consumption
CWE-789 Memory Allocation with Excessive Size Value
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-31811.json
epss 0.00208 https://api.first.org/data/v1/epss?cve=CVE-2021-31811
cvssv3.1 5.5 https://lists.apache.org/thread.html/r132e9dbbe0ebdc08b39583d8be0a575fdba573d60a42d940228bceff@%3Cnotifications.ofbiz.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r132e9dbbe0ebdc08b39583d8be0a575fdba573d60a42d940228bceff@%3Cnotifications.ofbiz.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/r143fd8445e0e778f4a85187bd79438630b96b8040e9401751fdb8aea@%3Ccommits.ofbiz.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r143fd8445e0e778f4a85187bd79438630b96b8040e9401751fdb8aea@%3Ccommits.ofbiz.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/r179cc3b6822c167702ab35fe36093d5da4c99af44238c8a754c6860f@%3Ccommits.ofbiz.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r179cc3b6822c167702ab35fe36093d5da4c99af44238c8a754c6860f@%3Ccommits.ofbiz.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/r2090789e4dcc2c87aacbd87d5f18e2d64dcb9f6eb7c47f5cf7d293cb@%3Cnotifications.ofbiz.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/r2090789e4dcc2c87aacbd87d5f18e2d64dcb9f6eb7c47f5cf7d293cb@%3Cnotifications.ofbiz.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/rd4b6db6c3b8ab3c70f1c3bbd725a40920896453ffc2744ade6afd9fb@%3Cnotifications.ofbiz.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/rd4b6db6c3b8ab3c70f1c3bbd725a40920896453ffc2744ade6afd9fb@%3Cnotifications.ofbiz.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/re0cacd3fb337cdf8469853913ed2b4ddd8f8bfc52ff0ddbe61c1dfba@%3Ccommits.ofbiz.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/re0cacd3fb337cdf8469853913ed2b4ddd8f8bfc52ff0ddbe61c1dfba@%3Ccommits.ofbiz.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e@%3Cusers.pdfbox.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e@%3Cusers.pdfbox.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e%40%3Cusers.pdfbox.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e%40%3Cusers.pdfbox.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/rf937c2236e6c79cdb99f76a70690dd345e53dbe0707cb506a202e43e@%3Cannounce.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/rf937c2236e6c79cdb99f76a70690dd345e53dbe0707cb506a202e43e@%3Cannounce.apache.org%3E
cvssv3.1 5.5 https://lists.apache.org/thread.html/rfe26bcaba564deb505c32711ba68df7ec589797dcd96ff3389a8aaba@%3Cnotifications.ofbiz.apache.org%3E
generic_textual MODERATE https://lists.apache.org/thread.html/rfe26bcaba564deb505c32711ba68df7ec589797dcd96ff3389a8aaba@%3Cnotifications.ofbiz.apache.org%3E
cvssv3.1 5.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7HHWJRFXZ3PTKLJCOM7WJEYZFKFWMNSV
generic_textual MODERATE https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7HHWJRFXZ3PTKLJCOM7WJEYZFKFWMNSV
cvssv3.1 5.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDJKJQOMVFDFIDS27OQJXNOYHV2O273D
generic_textual MODERATE https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDJKJQOMVFDFIDS27OQJXNOYHV2O273D
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2021-31811
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2021-31811
cvssv3.1 5.5 https://www.oracle.com/security-alerts/cpuapr2022.html
generic_textual MODERATE https://www.oracle.com/security-alerts/cpuapr2022.html
cvssv3.1 5.5 https://www.oracle.com/security-alerts/cpujan2022.html
generic_textual MODERATE https://www.oracle.com/security-alerts/cpujan2022.html
cvssv3.1 5.5 https://www.oracle.com//security-alerts/cpujul2021.html
generic_textual MODERATE https://www.oracle.com//security-alerts/cpujul2021.html
cvssv3.1 5.5 https://www.oracle.com/security-alerts/cpujul2022.html
generic_textual MODERATE https://www.oracle.com/security-alerts/cpujul2022.html
cvssv3.1 5.5 https://www.oracle.com/security-alerts/cpuoct2021.html
generic_textual MODERATE https://www.oracle.com/security-alerts/cpuoct2021.html
cvssv3.1 5.5 http://www.openwall.com/lists/oss-security/2021/06/12/2
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2021/06/12/2
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-31811.json
https://api.first.org/data/v1/epss?cve=CVE-2021-31811
https://lists.apache.org/thread.html/r132e9dbbe0ebdc08b39583d8be0a575fdba573d60a42d940228bceff@%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r143fd8445e0e778f4a85187bd79438630b96b8040e9401751fdb8aea@%3Ccommits.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r179cc3b6822c167702ab35fe36093d5da4c99af44238c8a754c6860f@%3Ccommits.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r2090789e4dcc2c87aacbd87d5f18e2d64dcb9f6eb7c47f5cf7d293cb@%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rd4b6db6c3b8ab3c70f1c3bbd725a40920896453ffc2744ade6afd9fb@%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/re0cacd3fb337cdf8469853913ed2b4ddd8f8bfc52ff0ddbe61c1dfba@%3Ccommits.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e@%3Cusers.pdfbox.apache.org%3E
https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e%40%3Cusers.pdfbox.apache.org%3E
https://lists.apache.org/thread.html/rf937c2236e6c79cdb99f76a70690dd345e53dbe0707cb506a202e43e@%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/rfe26bcaba564deb505c32711ba68df7ec589797dcd96ff3389a8aaba@%3Cnotifications.ofbiz.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7HHWJRFXZ3PTKLJCOM7WJEYZFKFWMNSV
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDJKJQOMVFDFIDS27OQJXNOYHV2O273D
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpujul2022.html
https://www.oracle.com/security-alerts/cpuoct2021.html
http://www.openwall.com/lists/oss-security/2021/06/12/2
1971648 https://bugzilla.redhat.com/show_bug.cgi?id=1971648
991526 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991526
991527 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991527
CVE-2021-31811 https://nvd.nist.gov/vuln/detail/CVE-2021-31811
GHSA-fg3j-q579-v8x4 https://github.com/advisories/GHSA-fg3j-q579-v8x4
RHSA-2021:3205 https://access.redhat.com/errata/RHSA-2021:3205
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-31811.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/r132e9dbbe0ebdc08b39583d8be0a575fdba573d60a42d940228bceff@%3Cnotifications.ofbiz.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/r143fd8445e0e778f4a85187bd79438630b96b8040e9401751fdb8aea@%3Ccommits.ofbiz.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/r179cc3b6822c167702ab35fe36093d5da4c99af44238c8a754c6860f@%3Ccommits.ofbiz.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/r2090789e4dcc2c87aacbd87d5f18e2d64dcb9f6eb7c47f5cf7d293cb@%3Cnotifications.ofbiz.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/rd4b6db6c3b8ab3c70f1c3bbd725a40920896453ffc2744ade6afd9fb@%3Cnotifications.ofbiz.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/re0cacd3fb337cdf8469853913ed2b4ddd8f8bfc52ff0ddbe61c1dfba@%3Ccommits.ofbiz.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e@%3Cusers.pdfbox.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/re3bd16f0cc8f1fbda46b06a4b8241cd417f71402809baa81548fc20e%40%3Cusers.pdfbox.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/rf937c2236e6c79cdb99f76a70690dd345e53dbe0707cb506a202e43e@%3Cannounce.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread.html/rfe26bcaba564deb505c32711ba68df7ec589797dcd96ff3389a8aaba@%3Cnotifications.ofbiz.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7HHWJRFXZ3PTKLJCOM7WJEYZFKFWMNSV
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDJKJQOMVFDFIDS27OQJXNOYHV2O273D
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-31811
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://www.oracle.com/security-alerts/cpuapr2022.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://www.oracle.com/security-alerts/cpujan2022.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://www.oracle.com//security-alerts/cpujul2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://www.oracle.com/security-alerts/cpujul2022.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://www.oracle.com/security-alerts/cpuoct2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at http://www.openwall.com/lists/oss-security/2021/06/12/2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.43209
EPSS Score 0.00208
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:21:32.221261+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.apache.pdfbox/pdfbox/CVE-2021-31811.yml 38.6.0