A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured.
CVE-2020-8908
This low-severity CVE scores 3.3 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 3.3
- EG Score
- 3.3(low)
- EPSS
- 57.5%
- KEV
- Not listed
Published
December 10, 2020
Last Modified
February 23, 2026
References (86)
- cve-coordination@googlehttps://github.com/google/guava/commit/fec0dbc4634006a6162cfd4d0d09c962073ddf40
- cve-coordination@googlehttps://github.com/google/guava/issues/4011
- cve-coordination@googlehttps://lists.apache.org/thread.html/r007add131977f4f576c232b25e024249a3d16f66aad14a4b52819d21%40%3Ccommon-issues.hadoop.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r07ed3e4417ad043a27bee7bb33322e9bfc7d7e6d1719b8e3dfd95c14%40%3Cdev.drill.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r161b87f8037bbaff400194a63cd2016c9a69f5949f06dcc79beeab54%40%3Cdev.drill.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r215b3d50f56faeb2f9383505f3e62faa9f549bb23e8a9848b78a968e%40%3Ccommits.ws.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r294be9d31c0312d2c0837087204b5d4bf49d0552890e6eec716fa6a6%40%3Cyarn-issues.hadoop.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r2fe45d96eea8434b91592ca08109118f6308d60f6d0e21d52438cfb4%40%3Cdev.drill.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r3c3b33ee5bef0c67391d27a97cbfd89d44f328cf072b601b58d4e748%40%3Ccommits.pulsar.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r3dd8881de891598d622227e9840dd7c2ef1d08abbb49e9690c7ae1bc%40%3Cissues.geode.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r4776f62dfae4a0006658542f43034a7fc199350e35a66d4e18164ee6%40%3Ccommits.cxf.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r49549a8322f62cd3acfa4490d25bfba0be04f3f9ff4d14fe36199d27%40%3Cyarn-dev.hadoop.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r58a8775205ab1839dba43054b09a9ab3b25b423a4170b2413c4067ac%40%3Ccommon-issues.hadoop.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r5b3d93dfdfb7708e796e8762ab40edbde8ff8add48aba53e5ea26f44%40%3Cissues.geode.apache.org%3E
- cve-coordination@googlehttps://lists.apache.org/thread.html/r5d61b98ceb7bba939a651de5900dbd67be3817db6bfcc41c6e04e199%40%3Cyarn-issues.hadoop.apache.org%3E
Vendor Advisories for CVE-2020-8908(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | guava | 2022-03-23 | redhat |
| redhat | patch | 2022-03-22 | redhat |
| redhat | candlepin-0:4.0.9-1.el7sat | 2021-11-16 | redhat |
| redhat | eap7-wildfly-naming-client-0:1.0.14-1.Final_redhat_00001.1.el6eap | 2021-03-16 | redhat |
| redhat | eap7-wildfly-naming-client-0:1.0.14-1.Final_redhat_00001.1.el7eap | 2021-03-16 | redhat |
| redhat | eap7-wildfly-naming-client-0:1.0.14-1.Final_redhat_00001.1.el8eap | 2021-03-16 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| com.google.guava:guava | 10.0 ... r09 (108 versions) | 32.0.0-android | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(9)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2020-89082023-04-07
Temp directory permission issue in Guava
- Red HatRHSA-2021:0872LOW2020-09-08
RHSA-2021:0872 — Low
- Red HatRHSA-2021:0873LOW2020-09-08
RHSA-2021:0873 — Low
- Red HatRHSA-2021:0874LOW2020-09-08
RHSA-2021:0874 — Low
- Red HatRHSA-2021:0885LOW2020-09-08
RHSA-2021:0885 — Low
- Red HatRHSA-2021:0974LOW2020-09-08
RHSA-2021:0974 — Low
- Red HatRHSA-2021:2210LOW2020-09-08
RHSA-2021:2210 — Low
- Red HatRHSA-2022:1013LOW2020-09-08
RHSA-2022:1013 — Low
- Red HatRHSA-2022:1029LOW2020-09-08
RHSA-2022:1029 — Low
Data Freshness Timeline
(refreshed 10× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-09 19:07 UTCEPSS rescore
- 2026-07-08 15:12 UTCEPSS rescore
- 2026-07-07 13:43 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
- 2026-07-06 02:21 UTCEPSS rescore
- 2026-07-06 02:21 UTCEPSS rescore
- 2026-07-05 02:28 UTCEPSS rescore
- 2026-07-05 02:28 UTCEPSS rescore
- 2026-07-04 06:29 UTCEPSS rescore
- 2026-07-04 06:29 UTCEPSS rescore
- 2026-07-02 16:57 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-28 14:05 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-25 13:48 UTCEPSS rescore
- 2026-06-25 13:48 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
Show 55 moreShow fewer
- 2026-06-24 07:59 UTCOSV refresh
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:24 UTCEPSS rescore
- 2026-06-19 19:24 UTCEPSS rescore
- 2026-06-18 17:51 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:46 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-12 23:10 UTCEPSS rescore
- 2026-06-12 23:10 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-10 22:16 UTCEPSS rescore
- 2026-06-10 13:20 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 11:29 UTCOSV refresh
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-01 13:50 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-23 04:24 UTCEG score recompute
- 2026-05-23 04:24 UTCVendor advisory
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc · redhat
Same CWE
10 shownCWE-732
Frequently asked(5)
What is CVE-2020-8908?
When was CVE-2020-8908 disclosed?
Is CVE-2020-8908 actively exploited?
What is the CVSS score of CVE-2020-8908?
How do I remediate CVE-2020-8908?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-8908
Is Your Infrastructure Affected by CVE-2020-8908?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.